WO2020213075A1 - 掃除機 - Google Patents

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Publication number
WO2020213075A1
WO2020213075A1 PCT/JP2019/016388 JP2019016388W WO2020213075A1 WO 2020213075 A1 WO2020213075 A1 WO 2020213075A1 JP 2019016388 W JP2019016388 W JP 2019016388W WO 2020213075 A1 WO2020213075 A1 WO 2020213075A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotating brush
suction head
cleaning surface
vacuum cleaner
rotating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2019/016388
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
玄 寺尾
佑哉 直原
一真 比嘉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Balmuda Inc
Original Assignee
Balmuda Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Balmuda Inc filed Critical Balmuda Inc
Priority to PCT/JP2019/016388 priority Critical patent/WO2020213075A1/ja
Priority to PCT/JP2020/016611 priority patent/WO2020213653A1/ja
Priority to JP2021514203A priority patent/JPWO2020213653A1/ja
Publication of WO2020213075A1 publication Critical patent/WO2020213075A1/ja
Anticipated expiration legal-status Critical
Priority to JP2023184405A priority patent/JP2023175046A/ja
Ceased legal-status Critical Current

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Classifications

    • 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
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/28—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle
    • A47L5/30—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle with driven dust-loosening tools, e.g. rotating brushes
    • 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
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/04—Nozzles with driven brushes or agitators

Definitions

  • the present invention relates to a vacuum cleaner, and particularly to a rotating brush mounted on a suction head.
  • Patent Document 1 discloses a floor cleaning device having a pair of rotating brushes arranged in front of and behind the nozzle body. These rotating brushes rotate in directions opposite to each other by the driving force of the motor, and are displaced up and down according to the front-back operation of the nozzle body. That is, when the nozzle body is pushed forward, the rear rotating brush that gives a positive force to this pushing force bites into the carpet and comes into contact with it, and the front rotating brush that gives a reaction force to this pushing force is the carpet. It becomes more floating and separated.
  • the front rotating brush that gives a positive force to this pulling force bites into the carpet and makes contact
  • the rear rotating brush that gives a reaction force to this pulling force is the carpet. It becomes more floating and separated. In this way, one of the front and rear rotating nozzles comes into contact with the carpet and the other is separated from the carpet according to the front-back operation of the nozzle body, so that the nozzle body can be moved back and forth without resistance.
  • Patent Document 2 discloses a vacuum cleaner head having a first roller and a second roller arranged in the front-rear direction.
  • the first roller is rotatable when moved in the first direction on the cleaning surface and is prevented from rotating when moved in the opposite second direction.
  • the second roller is rotatable when moved in the second direction on the cleaning surface and is prevented from rotating when moved in the first direction.
  • An object of the present invention is to provide a novel vacuum cleaner that realizes a light operability such as slipping of a suction head.
  • the present invention provides a vacuum cleaner having a suction head, a first rotating brush, a second rotating brush, and a drive mechanism.
  • the suction head sucks dust on the cleaning surface.
  • the first rotating brush is arranged parallel to the cleaning surface in the suction head.
  • the second rotating brush is arranged parallel to the cleaning surface and alongside the first rotating brush in the suction head, is in contact with the cleaning surface together with the first rotating brush, and rotates in the direction opposite to that of the first rotating brush.
  • the drive mechanism drives the first rotary brush and the second rotary brush.
  • a caster portion may be provided.
  • This caster portion is provided at the lower part of the suction head so as to be rollable, and keeps the contact height of the first rotating brush and the contact height of the second rotating brush with respect to the cleaning surface constant.
  • the caster portion is provided between the first rotating brush and the second rotating brush.
  • the caster portion may have a first caster portion provided on the left side portion of the suction head and a second caster portion provided on the right side portion of the suction head.
  • the first force generated by the rotation of the first rotating brush and the second force generated by the rotation of the second rotating brush cancel each other out.
  • the first force (T1 / r1 if the torque of the first rotating brush is T1 and its radius is r1) and the second force (T2 of the torque of the second rotating brush and its radius). If is r2, the absolute value may be the same as T2 / r2) and the direction may be opposite.
  • the first force is the product of the coefficient of friction ⁇ between the first rotating brush and the cleaning surface, the dispersed mass m1 of the first rotating brush, and the gravitational acceleration g ( ⁇ *).
  • the second force which is larger than m1 * g), is the coefficient of friction ⁇ between the second rotating brush and the cleaning surface, the dispersed mass m2 of the second rotating brush, and the gravitational acceleration g. It is desirable that it is larger than the multiplication value ( ⁇ * m2 * g).
  • the first rotating brush and the second rotating brush may be arranged before and after the suction head.
  • the present invention by rotating the first and second rotating brushes in opposite directions to cancel each other's advancing forces, it is possible to realize a light operability such as sliding of the suction head.
  • External perspective view of the vacuum cleaner External perspective view of the suction head Schematic bottom view of the suction head Expanded perspective view of the suction head Sectional view of suction head Explanatory drawing of mechanical action in a rotating brush alone Explanatory drawing of mechanical action in a pair of rotating brushes
  • FIG. 1 is an external perspective view of the stick-type vacuum cleaner according to the present embodiment.
  • the vacuum cleaner 1 is mainly composed of a suction head 2, a main body portion 3, and a handle rod portion 4.
  • the suction head 2 sucks dust on the cleaning surface (ground).
  • the "head” of the suction head 2 is used to mean a place such as the head or the tip portion, and the shape thereof is not particularly limited including the size relationship with the stick body described later. .. It is not particularly limited.
  • the suction head 2 refers to a member or a structure that sucks dust facing the cleaning surface, and it does not matter whether the suction motor (suction source) is mounted on the suction head 2 itself.
  • the main body 3 and the handle rod 4 are integrated, and as a whole, form a stick body extending upward from the suction head 2 in a rod shape.
  • the main body 3 is a tubular member, and a suction motor, a dust storage portion, a rechargeable battery, and the like are housed inside the main body portion 3.
  • the handle rod portion 4 is attached to the upper end of the main body portion 4 and extends upward. By arranging the heavy main body 3 below the suction head 2, the feeling of weight given to the user is reduced.
  • the user operates the vacuum cleaner 1 by grasping the handle bar portion 4 with his / her hand. Further, above the handle bar portion 4, operation buttons such as an on / off switch are provided at appropriate positions.
  • the suction head 2 and the main body 3 are connected via a universal joint 5.
  • a suction port 2a penetrating the upper and lower parts is provided substantially in the center of the suction head 2, and a universal joint portion is provided in the substantially center of the upper part of the suction head 2 in positional correspondence with the suction port 2a.
  • One end of 5 is attached. That is, the suction port 2a is a flow path for dust sucked by the suction head 2, and also serves as a mounting portion for the universal joint portion 5. Further, the other end of the universal joint portion 5 is attached to the lower end of the main body portion 3.
  • the stick body in which the main body portion 3 and the handle rod portion 4 are integrated can be located on the axis of the suction port 2a and can be freely tilted at an arbitrary angle in all directions.
  • the outer circumference of the universal joint portion 5 may be made of a resin material or the like in order to prevent the dust flow path from the suction port 2a on the head portion 2 side to the main body portion 3 to leak out. It is covered with a flexible material.
  • FIG. 2 is an external perspective view of the suction head 2.
  • the suction head 2 includes a pair of rotating brushes 7 and 8 attached to the inside of the cover body 6.
  • the cover body 6 is configured by assembling a plurality of cover members.
  • the pair of rotating brushes 7 and 8 have a function of partially grounding and contacting the cleaning surface to scrape out dust that has entered the cleaning surface.
  • these rotating brushes 7 and 8 are arranged side by side in front of and behind the suction head 2, more specifically, in front of and behind the suction port 2a.
  • the front rotary brush 7 is rotatably attached to a rotary shaft A1 extending parallel to the cleaning surface in the width direction of the suction head 2.
  • the rear rotary brush 8 is rotatably attached to the rotary shaft A2 extending parallel to the cleaning surface in the width direction of the suction head 2.
  • the rotary brushes 7 and 8 are rotationally driven by a drive mechanism 9 (including a drive source such as a motor) built in each of them or housed in a side portion of the cover body 6.
  • a drive mechanism 9 including a drive source such as a motor
  • the feature of this embodiment is that the rotating brushes 7 and 8 rotate in opposite directions to each other.
  • the front rotating brush 7 rotates counterclockwise and the rear rotating brush 8 rotates clockwise.
  • the rotary drive of the rotary brushes 7 and 8 may be performed by distributing the power generated by a single drive source by a plurality of power transmission mechanisms, or each of the plurality of drive sources may be distributed by the rotary brushes 7 and 8. May be assigned individually to.
  • FIG. 3 is a schematic bottom view of the suction head 2.
  • a caster portion 10 is provided at the lower part of the suction head 2.
  • the caster portion 10 can roll freely in all directions, and for example, a ball type or a wheel type can be used.
  • the caster portion 10 is arranged between the front and rear rotating brushes 7 and 8, more preferably at the center (on the center line) of the rotating axes A1 and A2.
  • the reason why the caster portion 10 is arranged in the center is that when the vacuum cleaner is operated, one of the rotating brushes 7 and 8 is grounded to the cleaning surface with the caster portion 10 as a fulcrum to improve the efficiency of scraping out dust.
  • a plurality of caster portions 10 are provided, one on the left side portion of the suction head 2 and the other on the right side portion of the suction head 2.
  • FIG. 4 is a developed perspective view of the suction head 2.
  • the cover body 6 described above is composed of an upper cover 6a, a pair of side covers 6b and 6c, and a pair of roller covers 6d and 6e.
  • the upper cover 6a has a plate shape extending in the width direction of the suction head 2, and a suction port 2a is provided substantially in the center thereof.
  • Side covers 6b and 6c are attached to both ends (left and right ends) of the upper cover 6a, respectively, and these side covers 6b and 6c rotatably accommodate the front rotating brush 7 and the roller cover 6d.
  • the rear rotary brush 8 is fixed in a sandwiched state with the roller cover 6e in which the rotary brush 8 is rotatably housed.
  • caster portions 10 are attached to substantially the center of the lower portion of the roller cover 6d and substantially the center of the lower portion of the roller cover 6e, respectively. Further, a suction portion 11 for partitioning a space for sucking dust on the cleaning surface is attached to the lower part of the upper cover 6a by the suction force of the suction motor.
  • FIG. 5 is a cross-sectional view of the suction head 2.
  • the ground planes of the caster portion 10 and the rotating brushes 7 and 8 are set slightly lower on the same plane or on the installation surface of the rotating brushes 7 and 8.
  • the caster portion 10 has a function of generating rolling with the cleaning surface in order to reduce its own wear, and also has a function of maintaining a constant contact height of the rotating brushes 7 and 8 with respect to the cleaning surface. .. Since soft brushes are attached around the rotating brushes 7 and 8, if the caster portion 10 is not provided, the suction head 2 may sink and come into contact with the cleaning surface, which may damage the cleaning surface or prevent it from slipping. .. Therefore, by providing the caster portion 10 under the suction head 2, such a situation can be avoided in advance.
  • FIG. 6 is an explanatory diagram of the mechanical action of the rotating brush (roller) alone.
  • a rotating brush having a mass m and a radius r performs a rotary motion to generate torque T while in contact with the cleaning surface (ground)
  • ⁇ be the coefficient of friction between the cleaning surface and the rotating brush. Since the cleaning surface of the rotating brush is fixed, it proceeds by reaction. This occurs under the condition of T / r ⁇ mg when the environment is simplified. This principle is similar to the principle that a car runs and that it is not affected by the weight when carrying an object with a roller.
  • the friction coefficient ⁇ between the rotating brush 7 and the cleaning surface and the rotating brush It is set to be larger than the product value ( ⁇ * m1 * g) of the dispersion mass m1 of 7 and the gravitational acceleration g.
  • the friction coefficient ⁇ between the rotating brush 8 and the cleaning surface and the rotating brush It is set to be larger than the product value ( ⁇ * m2 * g) of the dispersion mass m2 of 8 and the gravitational acceleration g.
  • FIG. 7 is an explanatory diagram of the mechanical action of the pair of rotating brushes 7 and 8.
  • the rotating brushes 7 and 8 When a pair of rotating brushes 7 and 8 are opposed to each other and rotated with the same torque and in opposite directions, if the absolute values of the forces are the same and the directions are opposite, the rotating brushes 7 and 8 The power to move is offset by each other.
  • the “offset” includes not only the case where the mutual forces are completely offset, but also the case where the difference between the mutual forces becomes small to the extent that the action and effect that the user can operate lightly is exhibited.
  • the ground contact surface of the rotating brushes 7 and 8 is reduced, so that the instantaneous friction coefficient is reduced, and the rotating brushes 7 and 8 rotate while the suction head 2 stays in place.
  • the friction coefficient is reduced, the suction head 2 is in a floating state, and the advancing forces cancel each other out, so that the user (operator) can smoothly move the suction head 2 in a desired direction.
  • the caster portion 10 moves freely in any direction, it does not interfere with the movement operation of the user, and can realize parallel movement in the left-right direction, which has been difficult in the past.
  • the rotating brushes 7 and 8 provided in the suction head 2 are rotated in opposite directions to cancel each other's advancing forces, so that the suction head 2 has a light sliding operability. It can be realized.
  • the contact heights thereof can be kept constant.
  • the slippery and light operability of the suction head 2 can be realized at a higher level.
  • the rod-shaped member in which the main body portion 3 and the handle rod portion 4 are integrated is located on the axis of the suction port 2a, and is located in all directions by the function of the universal joint portion 5. It can be tilted freely at any angle. As a result, the suction head 2 can be freely moved in an arbitrary direction without being conscious of the front and back as a user's operation feeling.
  • Vacuum cleaner 2 Suction head 2a Suction port 3 Main body 4 Handle rod 5 Universal joint 6 Cover 6a Top cover 6b, 6c Side cover 6d, 6e Roller cover 7, 8 Rotating brush 9 Drive mechanism 10 Caster 11 Suction Department

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
PCT/JP2019/016388 2019-04-16 2019-04-16 掃除機 Ceased WO2020213075A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/JP2019/016388 WO2020213075A1 (ja) 2019-04-16 2019-04-16 掃除機
PCT/JP2020/016611 WO2020213653A1 (ja) 2019-04-16 2020-04-15 掃除機
JP2021514203A JPWO2020213653A1 (https=) 2019-04-16 2020-04-15
JP2023184405A JP2023175046A (ja) 2019-04-16 2023-10-27 掃除機

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2019/016388 WO2020213075A1 (ja) 2019-04-16 2019-04-16 掃除機

Publications (1)

Publication Number Publication Date
WO2020213075A1 true WO2020213075A1 (ja) 2020-10-22

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PCT/JP2019/016388 Ceased WO2020213075A1 (ja) 2019-04-16 2019-04-16 掃除機
PCT/JP2020/016611 Ceased WO2020213653A1 (ja) 2019-04-16 2020-04-15 掃除機

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/016611 Ceased WO2020213653A1 (ja) 2019-04-16 2020-04-15 掃除機

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WO (2) WO2020213075A1 (https=)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022506021A (ja) * 2019-10-02 2022-01-17 ダイソン・テクノロジー・リミテッド 真空掃除機のための清掃ヘッド
CN115005715A (zh) * 2022-07-15 2022-09-06 北京顺造科技有限公司 一种地刷的助力装置、地刷组件及湿式表面清洁设备
US20240148205A1 (en) * 2021-03-17 2024-05-09 Versuni Holding B.V. Supplying liquid to at least one wheel of a suction head
US20240156311A1 (en) * 2021-03-17 2024-05-16 Versuni Holding B.V. Suction head for application in a vacuum cleaner
GB2632113A (en) * 2023-07-24 2025-01-29 Dyson Technology Ltd A floor cleaner
US12279741B2 (en) 2019-10-02 2025-04-22 Dyson Technology Limited Cleaner head for a vacuum cleaning appliance
US12329348B2 (en) 2019-10-02 2025-06-17 Dyson Technology Limited Cleaner head for a vacuum cleaning appliance

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112932325B (zh) * 2021-02-25 2022-03-22 江苏美的清洁电器股份有限公司 滚刷及具有其的清洁设备

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JPH0966008A (ja) * 1995-09-01 1997-03-11 Sanyo Electric Co Ltd 床用吸込具
JP2018110855A (ja) * 2017-01-09 2018-07-19 ダイソン・テクノロジー・リミテッド 真空掃除機のための掃除機ヘッド

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JPS5029465U (https=) * 1973-07-09 1975-04-03
JPH0458926A (ja) * 1990-06-28 1992-02-25 Sanyo Electric Co Ltd 床用吸込具
JPH07178018A (ja) * 1993-12-22 1995-07-18 Matsushita Electric Ind Co Ltd 電気掃除機用床ノズル
KR100492577B1 (ko) * 2002-10-22 2005-06-03 엘지전자 주식회사 로봇 청소기의 흡입헤드
JP2011177214A (ja) * 2010-02-26 2011-09-15 Sanyo Electric Co Ltd 電気掃除機の床用吸込具
JP6685751B2 (ja) * 2016-02-15 2020-04-22 東芝ライフスタイル株式会社 電気掃除機
JP6963794B2 (ja) * 2017-08-25 2021-11-10 槌屋ティスコ株式会社 ブラシ及び回転ブラシ

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0966008A (ja) * 1995-09-01 1997-03-11 Sanyo Electric Co Ltd 床用吸込具
JP2018110855A (ja) * 2017-01-09 2018-07-19 ダイソン・テクノロジー・リミテッド 真空掃除機のための掃除機ヘッド

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022506021A (ja) * 2019-10-02 2022-01-17 ダイソン・テクノロジー・リミテッド 真空掃除機のための清掃ヘッド
JP7150168B2 (ja) 2019-10-02 2022-10-07 ダイソン・テクノロジー・リミテッド 真空掃除機のための清掃ヘッド
US12137865B2 (en) 2019-10-02 2024-11-12 Dyson Technology Limited Cleaner head for a vacuum cleaning appliance
US12279741B2 (en) 2019-10-02 2025-04-22 Dyson Technology Limited Cleaner head for a vacuum cleaning appliance
US12329348B2 (en) 2019-10-02 2025-06-17 Dyson Technology Limited Cleaner head for a vacuum cleaning appliance
US20240148205A1 (en) * 2021-03-17 2024-05-09 Versuni Holding B.V. Supplying liquid to at least one wheel of a suction head
US20240156311A1 (en) * 2021-03-17 2024-05-16 Versuni Holding B.V. Suction head for application in a vacuum cleaner
CN115005715A (zh) * 2022-07-15 2022-09-06 北京顺造科技有限公司 一种地刷的助力装置、地刷组件及湿式表面清洁设备
GB2632113A (en) * 2023-07-24 2025-01-29 Dyson Technology Ltd A floor cleaner

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Publication number Publication date
JP2023175046A (ja) 2023-12-08
WO2020213653A1 (ja) 2020-10-22
JPWO2020213653A1 (https=) 2020-10-22

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