WO2018151478A1 - Dispositif de nettoyage de sol - Google Patents

Dispositif de nettoyage de sol Download PDF

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Publication number
WO2018151478A1
WO2018151478A1 PCT/KR2018/001808 KR2018001808W WO2018151478A1 WO 2018151478 A1 WO2018151478 A1 WO 2018151478A1 KR 2018001808 W KR2018001808 W KR 2018001808W WO 2018151478 A1 WO2018151478 A1 WO 2018151478A1
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WO
WIPO (PCT)
Prior art keywords
main brush
main body
main
brush
driving wheel
Prior art date
Application number
PCT/KR2018/001808
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English (en)
Korean (ko)
Inventor
정진구
Original Assignee
정진구
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 정진구 filed Critical 정진구
Publication of WO2018151478A1 publication Critical patent/WO2018151478A1/fr

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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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/34—Machines for treating carpets in position by liquid, foam, or vapour, e.g. by steam
    • 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
    • A47L11/02—Floor surfacing or polishing machines
    • A47L11/10—Floor surfacing or polishing machines motor-driven
    • A47L11/14—Floor surfacing or polishing machines motor-driven with rotating 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
    • A47L11/02—Floor surfacing or polishing machines
    • A47L11/10—Floor surfacing or polishing machines motor-driven
    • A47L11/14—Floor surfacing or polishing machines motor-driven with rotating tools
    • A47L11/145—Floor surfacing or polishing machines motor-driven with rotating tools with supply of cleaning agents

Definitions

  • the present invention relates to a floor cleaner, and more particularly, it is convenient to use, and effectively collects dust, rubbish, metal, etc. on the floor, operates the noiselessly by rotating the main brush, and sprays water A floor cleaner that can remove dirt.
  • a floor cleaner used to clean dust or rubbish on the floor can be cleaned using a vacuum cleaner that sucks out dust or rubbish using a vacuum suction force or a mop attached to the bottom.
  • a vacuum cleaner that sucks out dust or rubbish using a vacuum suction force or a mop attached to the bottom.
  • Various things, such as a mop-type cleaner, have been developed and are widely used.
  • the vacuum cleaner not only consumes a large amount of electricity, but also generates noise and is heavy, causing inconvenience in use.
  • Patent Document 1 Korean Registered Patent Publication No. 10-1362085 (Hankyunghee Life Science Co., Ltd.) 2014. 02. 06.
  • the technical problem to be achieved by the present invention is that it is easy to use and can effectively collect dust, rubbish, metal, etc. on the floor, and the main brush drive unit rotates the main brush to operate silently and spray water. It is to provide a floor cleaner to remove dirt.
  • the storage unit 11 is formed therein, the lower surface is formed with an opening 12 connected to the storage unit 11 and the main body having a driving wheel 13 in the circumferential portion ( 10);
  • a mop member 19 provided on the lower side of the main body 10 to be located behind the opening 12; It is provided to extend in the lateral direction in front of the opening 12 of the main body 10 and is connected to the driving wheel 13 when the driving wheel 13 is rotated in conjunction with it to rotate the dust or garbage on the floor to the rear
  • a main brush 20 for pushing into the opening 12 It is provided to be located on both sides of the main brush 20 on the lower side of the main body 10 is connected to the drive wheel 13 and the main brush 20, the drive wheel 13 and the main brush 20
  • a water spraying unit 50 provided in the main body 10 to spray water to the front of the main brush 20;
  • a main brush drive unit 60 connected to the main brush 20 to rotate
  • the drive wheel 13 is coupled to the drive shaft 16 provided in the main body 10, the main brush 20 is connected to the drive shaft 16 through the speed increaser 40, the speed increaser (The first and second support shafts 41 and 42 disposed on the main body 10 to be parallel to the drive shaft 16, the drive gear 43 fixedly coupled to the drive shaft 16, and the drive shaft A plurality of gearing gears 44 coupled to the first support shaft 41 and connected to each other and a driven gear 45 fixed to the second support shaft 42 and connected to the speed increasing gear 44.
  • the water injection unit 50 and the main brush drive unit 60 is connected to the second support shaft 42, the water injection unit 50 is the rotational force of the second support shaft 42 Water is sprayed on the basis, and the main brush drive unit 60 may rotate the second support shaft 42 to rotate the main brush 20 irrespective of the driving wheel 13.
  • the water injection unit 50 the water storage tank 51 provided on the upper side of the main body 10; A pump body 52 provided in the main body 10 to be disposed below the water storage tank 51 and into which water supplied from the water storage tank 51 flows in and out; An inlet ball 53 provided to be movable at an inlet of the pump body 52; Outlet ball 54 is provided to be movable in the outlet of the pump body 52; A piston (55) provided to be movable in the pump body (52); A connecting rod 56 having one side provided at the piston 55 and the other side connected to the second support shaft 42; A spring 57 having one side supported by an inner wall of the pump body 52 and the other side supported by the piston 55; And an injection member 58 provided at the front of the main body 10 to inject water supplied from the pump body 52 to the front of the main body 10.
  • the dust on the floor can be treated by the mop member and the metal can be collected by the magnet member can effectively collect the dust, rubbish, metal and the like on the floor.
  • the main brush may be driven by the operation of the main brush driving unit to remove foreign substances on the floor by driving the main brush regardless of the rotation of the driving wheel.
  • the plurality of rollers provided in the collecting container can conveniently move the front part of the main body without jamming, and prevent the waste introduced into the storage part from being discharged to the outside of the main body by the discharge preventing guider provided at the ceiling of the storage part. Can be.
  • FIG. 1 is a schematic diagram schematically illustrating a floor cleaner according to an embodiment of the present invention.
  • FIG. 2 is a bottom view of the floor cleaner illustrated in FIG. 1.
  • FIG. 3 is a cross-sectional view taken along the line A-A of FIG.
  • FIG. 4 is a cross-sectional view taken along line B-B of FIG. 2.
  • FIG. 5 is a view illustrating a drive shaft, a main brush, and an auxiliary brush of the floor cleaner illustrated in FIG. 1.
  • FIG. 6 is a side cross-sectional view showing the action of the floor cleaner shown in FIG.
  • FIG. 7 and 8 are side cross-sectional views showing another embodiment of the floor cleaner shown in FIG.
  • FIG. 9 is an enlarged view of a main part shown in FIG. 5.
  • FIG. 10 is an operation diagram of the water jet shown in FIG.
  • FIG. 1 is a schematic view schematically showing a floor cleaner according to an embodiment of the present invention
  • FIG. 2 is a bottom view of the floor cleaner shown in FIG. 1
  • FIG. 3 is a cross-sectional view taken along line AA of FIG. 2
  • FIG. 4 is a cross-sectional view taken along line BB of FIG. 2
  • FIG. 5 is a diagram illustrating a connection relationship between a drive shaft, a main brush, and an auxiliary brush of the floor cleaner illustrated in FIG. 1.
  • FIG. 6 is a side cross-sectional view showing the action of the floor cleaner shown in FIG. 1
  • FIGS. 7 and 8 are side cross-sectional views showing another embodiment of the floor cleaner shown in FIG. 1
  • FIG. 9 is shown in FIG. 10 is an enlarged view of the main part
  • FIG. 10 is an operation view of the water injection part shown in FIG. 1.
  • the floor cleaner has a storage unit 11 formed therein, an opening 12 connected to the storage unit 11 formed at a lower side thereof, and a driving unit at a circumferential portion thereof.
  • the main body 10 provided with the wheel 13, the main brush 20 provided to extend laterally in front of the opening portion 12 of the main body 10, and the lower side of the main body 10
  • a pair of auxiliary brushes 30 provided to be positioned at both sides of the main brush 20, a water injection unit 50 provided in the main body 10 to spray water to the front of the main brush 20, and the A main brush drive unit 60 connected to the main brush 20 and rotating the main brush 20 by manipulation of the lever L provided in the main body 10, and a rear region of the driving wheel 13;
  • a magnet part 70 provided on the main body 10 to attach metal to the main body 10 and a ceiling part of the storage part 11. It is provided on the bottom surface of the discharge prevention guider 80 to prevent the waste introduced into the unit 11 is discharged to the outside of the main body 10 again, and the collecting container 11a coupled to the storage unit
  • the main body 10 is configured in a tubular shape of a synthetic resin material, and as shown in FIGS. 2 and 3, the concave portion 14 into which the main brush 20 is inserted is extended in a lateral direction in front of a lower side thereof.
  • the opening 12 is configured in the form of a long hole extending laterally to the rear side of the recess 14.
  • the rear side surface of the concave portion 14 is configured to be rounded to correspond to the rear side surface of the main brush 20, the storage portion 11 through the opening 12 to the inside of the main body 10.
  • the collecting container 11a which collects the inflowed dust and garbage is provided detachably.
  • a plurality of rollers 90 may be provided at the bottom portion of the collection container 11a.
  • the plurality of rollers 90 are provided to maintain the height at which the lowermost end of the pair of auxiliary brushes 30 is in contact with the ground, and prevents excessive load from being applied to the pair of auxiliary brushes 30, and the body 10. It is possible to smooth the movement of the front part.
  • the driving wheel 13 is provided at both ends of the drive shaft 16 provided to extend laterally at the rear of the main body 10 to protrude to the lower side of the main body 10, the circumferential surface has a high coefficient of friction Consisting of the material, when the main body 10 is placed on the floor and moved back and forth, the driving wheel 13 may be configured to be forward and reverse rotation.
  • the driving wheel 13 may be made of urethane rubber, and grooves may be provided on the surface thereof to maximize traction, thereby preventing slippage of the driving wheel 13 when the main brush 20 rotates at high speed.
  • concave grooves 15 into which the driving wheel 13 is inserted are formed at both rear lower side surfaces of the main body 10, and both ends of the driving shaft 16 extend into the concave groove 15. It is connected to the drive wheel (13).
  • the upper surface of the main body 10 is provided with a bar-shaped handle 17 extending in the vertical direction.
  • the handle 17 has a lower end rotatably coupled to the coupling portion 18 provided on the upper surface of the main body 10 in the front-rear direction.
  • the lower surface of the main body 10 is provided with a mop member 19 to be located behind the opening 12.
  • the mop member 19 is detachably coupled to the lower side of the main body 10 using the Velcro member.
  • the main brush 20 has a cylindrical shape having a rotating shaft 21 extending laterally and a plurality of sole members 22 extending in a radial direction on the circumferential surface of the rotating shaft 21. Both ends of the rotating shaft 21 are rotatably coupled to the concave portion 14 of the main body 10 so as to protrude downward from the main body 10, and the rotating shaft 21 is connected to the speed increaser 40. It is connected to the rotary shaft 21 of the drive wheel 13, when the drive wheel 13 is rotated is configured to rotate in response to the main brush 20 at high speed.
  • the speed increaser 40 includes first and second support shafts 41 and 42 disposed in the main body 10 in parallel with the driving shaft 16, and the driving shaft.
  • a drive gear 43 fixedly coupled to 16 a plurality of speed increase gears 44 coupled to the drive shaft 16 and the first support shaft 41 and interconnected with the second support shaft 42;
  • the main The brush 20 is configured to rotate in the same forward direction as the driving wheel 13 (in the case of the drawing, the counterclockwise direction in which the lower end is rotated backward).
  • the auxiliary brush 30 includes a rotating shaft 31 extending in the vertical direction, a disk 32 provided at the lower end of the rotating shaft 31, and a plurality of radially extending from the circumference of the disk 32. It is composed of a brush member 33, the rotation shaft 31 is rotatably coupled to the main body 10 so as to be located on both front sides of the main brush (20).
  • the length of the brush member 33 is formed long enough so that the circumferential portion protrudes in the front and side directions of the front both sides of the main body 10.
  • the sole member 33 is provided to extend inclined downward from the circumference of the disk 32, the end of the sole member 33 is configured to be in close contact with the floor.
  • the rotating shaft 31 of the auxiliary brush 30 is operatively connected to the rotating shaft 21 of the main brush 20 through the bevel gear 34.
  • the front circumference is rotated in the mutually adjacent direction is configured to collect the dust or garbage around the front of the main brush (20).
  • the main brush 20 and the auxiliary brush 30 is provided to be detachable to the main body 10 is configured to be replaced as necessary.
  • the floor cleaner configured as described above, when the driving wheel 13 is placed on the floor, when the user grabs the handle 17 and pushes the main body 10 forward, FIGS. 5 and 6. As shown in the drawing, the driving wheel 13 is rotated in conjunction with this, the main brush 20 and the auxiliary brush 30 is rotated.
  • the auxiliary brush 30 is the front end portion is rotated in the adjoining direction to collect the dust and garbage around the front of the main brush 20, the main brush 20 has a lower peripheral portion is rotated to the rear to the front
  • the dust and rubbish at the bottom is to be collected in the collecting container (11a) provided in the storage unit 11 through the opening (12).
  • the user can not only effectively clean the dust and rubbish on the floor by simply pushing the main body 10 forward, but also has the advantage of being light in weight, convenient in use, and no noise generated.
  • the auxiliary brush 30 is provided with a rotating shaft 31 extending in the vertical direction and the circumferential portion is configured to protrude in the front and side directions of both front corners of the main body 10, to clean the corners of the room neatly
  • the bottom surface of the main body 10 is provided with a mop member so as to be located behind the opening 12, when the main body 10 is moved forward, such as dust not removed by the main brush 20 By being cleaned by the mop member 19, there is an advantage that can clean the floor more clean.
  • the auxiliary brush 30 is illustrated to be connected to the main brush 20 through the connecting means, but the auxiliary brush 30 is connected to the driving wheel 13 through the speed increaser 40. Can be connected directly.
  • the drive gear 43 of the speed increaser 40 is illustrated to be fixedly coupled to the drive shaft 16, but the drive gear 43 is as shown in FIGS. 7 and 8. Is coupled to the drive shaft 16 through a one-way bearing 48, only when the user pushes the main body 10 forward, the drive shaft 16 and the drive gear 43 is operatively connected, the main The brush 20 may be configured to rotate.
  • the one-way bearing 48 has an inner ring 48a coupled to an outer side of the drive shaft 16, an outer ring 48b rotatably coupled to an outer side of the inner ring 48a, and the inner ring. It consists of the key member 48c provided between 48a and the outer ring 48b.
  • the outer peripheral surface of the inner ring 48a is formed with an inclined groove 48d deeper toward the direction in which the drive shaft 16 is rotated forward (counterclockwise in the case of drawing), the key member 48c is the inclined groove It is provided inside 48d.
  • the driving gear 43 is coupled to the outside of the outer ring 48b.
  • the floor cleaner configured as described above is driven by the one-way bearing 48 to drive the drive shaft 16 and the drive gear 43 when the user pushes the body 10 forward and the drive wheel 13 is rotated forward. Is connected to the drive gear 43 is rotated, thereby cleaning the main brush 20 is rotated.
  • the main brush 20 is connected to the driving wheel 13 through the speed increaser 40, when the user pushes or pulls the main body 10 forward and backward, the brush is fixed. In this case, a load for rotating the main brush 20 is applied to the main body 10 so that a force is exerted when the main body 10 is pushed or pulled.
  • the water injection unit 50 may be provided in the main body 10 to inject water using the rotational force of the driving wheel toward the front of the main body 10 as a power.
  • the water injection unit 50 to be disposed below the water storage tank 51 and the water storage tank 51 provided on the upper side of the main body 10.
  • the pump body 52 is provided in the main body 10 and the water supplied from the water storage tank 51 is introduced and discharged, and the inlet ball 53 is provided to be movable in the inlet of the pump body 52.
  • the outlet ball 54 is provided to be movable in the discharge port of the pump body 52
  • the piston 55 is provided to be movable inside the pump body 52
  • one side is the piston 55
  • a connecting rod 56 provided at the other side and connected to the second support shaft 42, and a spring supported at one side thereof on an inner wall of the pump body 52 and on the other side supported by the piston 55.
  • Injection and it includes the injection member 58 comprising a nozzle.
  • the water storage tank 51 and the pump body 52, the pump body 52 and the injection member 58 may be connected by a hose.
  • the inlet ball 53 and the outlet ball 54 may be restricted in movement by protrusions provided on the inner wall of the pump body 52.
  • the second support shaft 42 may have the same shape as the crankshaft of the vehicle so that the rotational force of the second support shaft 42 may be transmitted in a linear motion to the cylinder through the connecting rod 56.
  • the rotational force of the driving wheel 13 is transmitted to the first support shaft 41 and the second support shaft 42 by the drive gear 43 and the plurality of speed increase gears 44. do.
  • the second support shaft 42 has the same shape as the crank shaft of the vehicle, and thus the rotational force of the second support shaft 42 may be transmitted to the piston 55 through the connecting rod 56.
  • the piston 55 moves from side to side in the pump body 52 in the left and right directions with reference to FIG. 10A, as shown in FIG. 10B.
  • Can supply At this time, the spring 57 in the pump body 52 can guide the movement of the piston 55, the inlet ball 53 and the outlet ball 54 by the pressure generated by the movement of the piston 55 The can move to selectively open and close the flow path through which the water flows.
  • the main brush driving unit 60 is connected to the second support shaft 42 through the lever L to rotate the second support shaft 42 to thereby rotate the main brush 20. Can be rotated.
  • the main brush drive unit 60 is connected to the other side of the lever L to which one side is connected to the second support shaft 42 by the left and right movement of the lever L, as shown in FIG. 9.
  • It includes a charger 63 is connected to.
  • the second support shaft 42 and the head of the motor 61 may be connected by a coupler C, as shown in FIG. 9.
  • the coupler C can be freely rotated using a bearing or the like regardless of the lever L in the lever L, and is caught in a groove provided in the lever body LB when the lever L is moved.
  • the motor 61 may be moved in the left and right directions of the motor 61 to be connected to the motor 61. That is, when the lever L is moved to the right with reference to FIG. 9, the coupler C may also be moved together with the lever L to be connected to the motor 61. In this case, the coupler C and the second support shaft 42 may be moved.
  • the rotational force of the motor 61 may be transmitted to the second support shaft 42 by maintaining the connected state.
  • the motor 61 may be operated while the driving wheel 13 is not rotated to rotate the main brush 20.
  • the magnet part 70 may be provided at the rear part of the main body 10 to attach metal on the floor during cleaning.
  • the magnet part 70 may include a permanent magnet, and may be coupled in a fitting manner to a groove provided in the main body 10.
  • the anti-drain guider 80 is provided at the ceiling of the storage unit 11 so that the waste introduced into the storage unit by the main brush 20 is discharged to the outside of the main body 10 again. Can be prevented.
  • the discharge prevention guider 80 may be provided in the opening, as shown in FIG. 3.
  • the present embodiment can process dust on the floor by the mop member and collect metal by the magnet member, thereby effectively collecting dust, garbage, metal, etc. on the floor.
  • the main brush may be driven by the operation of the main brush driving unit to remove foreign substances on the floor by driving the main brush regardless of the rotation of the driving wheel.
  • the plurality of rollers provided in the collecting container can conveniently move the front part of the main body without jamming, and prevent the waste introduced into the storage part from being discharged to the outside of the main body by the discharge preventing guider provided at the ceiling of the storage part. Can be.

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Abstract

L'invention concerne un dispositif de nettoyage de sol. Le dispositif de nettoyage de sol selon la présente invention est caractérisé en ce qu'il comprend : un corps (10) ayant une partie de stockage (11) formée à l'intérieur, ayant une ouverture (12) formée à travers la surface inférieure de celui-ci et reliée à la partie de stockage (11), et comprenant une roue d'entraînement (13) disposée sur la partie périphérique de celui-ci; un élément de chiffon (19) disposé sur la surface inférieure du corps (10) et positionné derrière l'ouverture (12); une brosse principale (20) disposée devant l'ouverture (12) du corps (10) de manière à s'étendre latéralement, la brosse principale (20) étant reliée à la roue d'entraînement (13) de sorte que, lorsque la roue d'entraînement (13) est entraînée en rotation, la brosse principale (20) coopère avec celle-ci et tourne de manière à pousser vers l'arrière la poussière ou les détritus sur le sol dans l'ouverture (12); une paire de brosses auxiliaires (30) disposées sur la surface inférieure du corps (10) et positionnées des deux côtés de la brosse principale (20), les brosses auxiliaires (30) étant reliées à la roue d'entraînement (13) et à la brosse principale (20) de sorte que, lorsque la roue d'entraînement (13) et la brosse principale (20) tournent, les brosses auxiliaires (30) tournent et ramassent la poussière ou les détritus, qui se trouvent des deux côtés devant la brosse principale (20), en direction de la brosse principale (20); une partie de pulvérisation d'eau (50) disposée sur le corps (10) de manière à pulvériser de l'eau vers l'avant de la brosse principale (20); une partie d'entraînement de brosse principale (60) reliée à la brosse principale (20) de manière à faire tourner la brosse principale (20) par la manipulation d'un levier (L) disposé sur le corps (10); une partie aimant (70) disposée sur le corps (10) dans la zone derrière la roue d'entraînement (13) de manière à attacher des métaux; un guide anti-évacuation (80) disposé sur la partie plafond de la partie de stockage (11) de manière à empêcher les détritus introduits dans la partie de stockage (11) d'être de nouveau évacués du corps (10); une pluralité de rouleaux (90) disposés sur la partie inférieure d'un cylindre collecteur (11a) mis en prise avec la partie de stockage (11).
PCT/KR2018/001808 2017-02-16 2018-02-12 Dispositif de nettoyage de sol WO2018151478A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20-2017-0000793 2017-02-16
KR2020170000793U KR200483483Y1 (ko) 2017-02-16 2017-02-16 바닥 청소기

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WO2018151478A1 true WO2018151478A1 (fr) 2018-08-23

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Publication number Priority date Publication date Assignee Title
KR101888474B1 (ko) * 2017-12-05 2018-08-14 정진구 개선된 바닥 청소기
CN109091072B (zh) * 2018-06-28 2020-09-29 廖志敏 一种扫地机器人的边刷装置

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KR20000013039A (ko) * 1998-08-04 2000-03-06 김춘호 적층형 칩 인덕터
KR20010054397A (ko) * 1999-12-06 2001-07-02 이충전 소형청소기 및, 소형청소기가 착탈가능한 진공청소기
KR20060055987A (ko) * 2004-11-19 2006-05-24 주식회사 대우일렉트로닉스 진공청소기의 브러쉬 회전장치
KR100662642B1 (ko) * 2005-06-22 2007-01-02 삼성광주전자 주식회사 물청소 기능을 갖는 진공청소기
KR101333102B1 (ko) * 2012-12-13 2013-11-29 백혜림 무동력 청소기

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Publication number Priority date Publication date Assignee Title
KR20000013039U (ko) * 1998-12-23 2000-07-15 전주범 자성을 갖는 진공청소기의 브러쉬
KR101362085B1 (ko) 2011-12-30 2014-02-12 한경희 바닥 청소기용 베이스 어셈블리

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000013039A (ko) * 1998-08-04 2000-03-06 김춘호 적층형 칩 인덕터
KR20010054397A (ko) * 1999-12-06 2001-07-02 이충전 소형청소기 및, 소형청소기가 착탈가능한 진공청소기
KR20060055987A (ko) * 2004-11-19 2006-05-24 주식회사 대우일렉트로닉스 진공청소기의 브러쉬 회전장치
KR100662642B1 (ko) * 2005-06-22 2007-01-02 삼성광주전자 주식회사 물청소 기능을 갖는 진공청소기
KR101333102B1 (ko) * 2012-12-13 2013-11-29 백혜림 무동력 청소기

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