WO2015051829A1 - Buse d'aspiration à deux positions de rotation - Google Patents

Buse d'aspiration à deux positions de rotation Download PDF

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Publication number
WO2015051829A1
WO2015051829A1 PCT/EP2013/070950 EP2013070950W WO2015051829A1 WO 2015051829 A1 WO2015051829 A1 WO 2015051829A1 EP 2013070950 W EP2013070950 W EP 2013070950W WO 2015051829 A1 WO2015051829 A1 WO 2015051829A1
Authority
WO
WIPO (PCT)
Prior art keywords
suction
suction nozzle
nozzle according
cleaning surface
surface contact
Prior art date
Application number
PCT/EP2013/070950
Other languages
German (de)
English (en)
Inventor
Felix Treitz
Ralph Diehl
Thomas Zerrer
Original Assignee
Alfred Kärcher Gmbh & Co. Kg
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 Alfred Kärcher Gmbh & Co. Kg filed Critical Alfred Kärcher Gmbh & Co. Kg
Priority to PCT/EP2013/070950 priority Critical patent/WO2015051829A1/fr
Publication of WO2015051829A1 publication Critical patent/WO2015051829A1/fr

Links

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
    • 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
    • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
    • A47L9/066—Nozzles with fixed, e.g. adjustably fixed brushes or the like with adjustably mounted brushes, combs, lips or pads; Height adjustment of nozzle or dust loosening 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
    • 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
    • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
    • A47L9/068—Nozzles combined with a different cleaning side, e.g. duplex nozzles or dual purpose nozzles

Definitions

  • the invention relates to a suction nozzle for a nipple, comprising a holding body with at least one suction channel.
  • the invention relates to a vacuum cleaner comprising a blower device and a suction port.
  • a triangular-shaped suction nozzle is known, which has a first functional side and a second functional side.
  • a suction nozzle with different suction functions is known.
  • the invention has for its object to provide a suction nozzle of the type mentioned, which has different uses with ease of use.
  • the turntable forms a revolver on which the different function nozzles are arranged, and the rotational position determines which functional nozzle is effective.
  • the suction nozzle according to the invention is a changeover nozzle, in which a changeover with respect to the corresponding function nozzle takes place by means of rotation.
  • the second cleaning surface contact device is in a parking position in which it is spaced apart from the height to a first contact surface of the first cleaning surface contact device with a surface to be cleaned.
  • the second cleaning surface contact device is then also spaced apart from the height to the cleaning surface. An extraction on the surface to be cleaned with the first cleaning surface contact device is then not hindered by the second cleaning surface contact device.
  • the first cleaning surface contact device is in a parking position in which it is height-spaced to a second contact surface of the second cleaning surface contact device with a surface to be cleaned.
  • first cleaning surface contact device and the second cleaning surface contact device are arranged aligned parallel to one another on the turntable, wherein the parallel alignment is in particular related to corresponding suction lips or brush strips. This results in a large intake area and a compact design of the suction nozzle. It is advantageous if the first cleaning surface contact device has a first contact surface for a surface to be cleaned and the second cleaning surface contact device has a second contact surface for a surface to be cleaned, wherein the first contact surface and the second contact surface at an angle and in particular acute angle to each other are oriented. As a result, an active position can be adjusted in a simple manner for a cleaning surface contact device and a parking position for the other cleaning surface contact device.
  • a rotation axis of the turntable is oriented at a first angle to the first contact surface and at a second angle to the second contact surface.
  • the first angle and the second angle are at least approximately equal. This makes it easy to realize a rotatability of the turntable, wherein the first rotational position and the second rotational position are corresponding operative positions.
  • a rotary bearing for rotatability of the turntable is arranged on the holding body between the first cleaning surface contact device and the second cleaning surface contact device.
  • a rotary bearing is at least partially disposed on an underside of the holding body, which faces in a suction operation of a surface to be cleaned.
  • the turntable facing a lower side of the holding body has at least one abutment region on the holding body, which bears against the holding body at least in the first rotational position and the second rotational position.
  • the at least one contact region is oriented at a first acute angle to a first contact surface of the first cleaning surface contact device and / or at a second acute angle to a second contact surface of the second cleaning surface contact device. It can thus be realized in a simple manner, an active position and a parking position.
  • first acute angle and the second acute angle are at least approximately equal to realize the suction nozzle in a structurally simple manner.
  • a suction inlet mouth of the at least one suction channel is oriented parallel to the at least one contact region when the turntable bears against the underside of the holding body with the at least one contact region. It can thereby form the holding body in a simple manner.
  • a first contact area is provided, which is pierced by a rotation axis for the rotation of the turntable on the holding body.
  • the turntable can be supported on the holding body in the region of a pivot bearing.
  • a second abutment region is provided, which is spaced from the first abutment region and which in the first rotational position or the second rotational position on an underside of the holding body is applied. This results in a further support area. This results in a stable training in a suction operation.
  • the first suction outlet device is arranged between the first abutment region and the second abutment region and / or in the second rotational position the second suction outlet device is positioned between the first abutment region and the second abutment region.
  • a nozzle projecting beyond an underside of the holding body is arranged on the at least one suction channel.
  • the nozzle is in particular a sealing nozzle. It can thus be realized in a simple manner, the first rotational position and the second rotational position. A fluid-effective seal for a corresponding flow path can also be achieved via the connection piece. It is also possible that at least one stub projecting beyond an upper side of the turntable is arranged on the turntable.
  • the first cleaning surface contact device and the second cleaning surface contact device then each have a connection piece.
  • On the holding body one or more recesses are arranged, in which then the corresponding nozzle can dip. In particular, a plurality of recesses are provided when a plurality of different sockets are provided.
  • the turntable for the first cleaning surface contact device and / or the second cleaning surface contact device has a recess adapted to the nozzle for immersing the nozzle when the first cleaning surface contact device in the first rotational position or the second cleaning surface contact device in the second rotational position are, or on the holding body is for the first cleaning surface contact device and / or the second cleaning surface contact means a matched recess, which is assigned to the at least one suction channel. is arranged, arranged for dipping a nozzle of the turntable when the first cleaning surface contact device in the first rotational position or the second cleaning surface contact device in the second rotational position. About the nozzle can then secure the appropriate rotational position.
  • a recess is formed as an annular groove into which an annular wall of the corresponding nozzle is submersed.
  • the annular groove can be arranged on the turntable (when a nozzle is arranged on the holding body), or the annular groove can be arranged on the holding body (when a corresponding nozzle is arranged on the turntable). It is then arranged in particular a Saugauslassmündung the corresponding cleaning surface contact device within the annular groove or the corresponding nozzle.
  • suction outlet orifice has a smaller cross-section (in terms of shape and area) than a suction inlet orifice of the at least one suction channel. It is also possible that a recess is formed as a full opening, in which the corresponding nozzle as a whole with respect to its entire cross-section is submersed. Such a design is advantageous if a suction outlet orifice of the corresponding cleaning surface contact device and a suction inlet orifice of the at least one suction channel are at least approximately equal.
  • the immersion of the corresponding nozzle in a recess defines the first rotational position or second rotational position and in particular locks a corresponding rotational position. This allows both a fluid sealing function on the corresponding
  • a spring means is arranged on the turntable, which presses the turntable against an underside of the holding body. It is thereby a support of the turntable on the holding body to increase the stability of the suction nozzle, in particular in a suction operation.
  • the spring device can also be used to solve a rotational position.
  • a pivot bearing for the rotation of the turntable on the holding body comprises a pin which is non-rotatably arranged on the holding body and which is penetrated by a recess on the turntable.
  • the head has a greater width than the recess to provide a corresponding "fall arrest".
  • At least one compression spring is supported on the head and the turntable.
  • this compression spring By this compression spring, the turntable can be pressed against an underside of the holding body. By overcoming the spring force of the compression spring in turn, the turntable can be lifted from the holding body, in particular to allow a rotation.
  • first cleaning surface contact device and the second cleaning surface contact device are designed differently for different suction applications.
  • the different suction applications can be, for example, dry suction and wet suction.
  • dry suction and wet suction For example, in the dry suction and the type of surfaces to be cleaned as hard floors or carpets can be distinguished.
  • one of the cleaning surface contact devices of the first cleaning surface contact device and the second cleaning surface contact device has a design as a wet suction device, which in particular has spaced-apart suction lips.
  • the corresponding cleaning surface contact device is then designed as a wet suction nozzle.
  • one of the cleaning surface contact devices of the first cleaning surface contact device and the second Cleaning surface contact device is designed astecsaug worn having in particular spaced brush strips.
  • the corresponding cleaning surface contact device is designed as a drying nozzle. If both a dry nozzle and a wet suction nozzle are provided on the same suction nozzle, then the corresponding suction nozzle can be used for both the dry suction and the wet suction.
  • rollers of a roller device for driveability of the suction nozzle are arranged on the first cleaning surface contact device and / or the second cleaning surface contact device. This results in an easier operation for an operator regardless of the application.
  • at least one rotary joint for rotatability of the holding body relative to a holding tube is arranged on the at least one suction channel. This results in an additional possibility of movement of the holding body with respect to the holding tube.
  • the first rotational position and the second rotational position are at an angle of 180 ° to each other. This makes it possible to realize a compact suction nozzle, which has an increased range of functions.
  • a sucker which comprises a blower device and a suction port. At least one suction nozzle according to the invention is provided for the fluid-effective connection to the suction connection.
  • the nipple is in particular a wet-dry nipple and the suction nozzle is formed so that the first cleaning surface contact device for Najiabsaugung and the second cleaning surface contact device fordovabsaugung are formed.
  • Figure 1 is a perspective view of an embodiment of a nipple for use with a suction nozzle according to the invention
  • Figure 2 is a plan view of an embodiment of a suction nozzle according to the invention.
  • FIG. 3 shows a sectional view along the line 3--3 according to FIG. 2.
  • FIG. 1 An exemplary embodiment of a nipple, which is shown in FIG. 1 and designated therein by 10, comprises a base 12 on which a housing 14 is arranged.
  • the sucker 10 is movable, with 12 rollers 16 are arranged on the base.
  • a blower device 18 is arranged, which serves to generate a suction flow.
  • the blower device 18 is fluidly connected to a suction port 20, which is arranged on the housing 14.
  • a filter device is arranged in the housing 14 and a dirt collecting container is arranged in the housing 14.
  • a suction nozzle 23 (FIGS. 2, 3) can be connected to the suction connection 20
  • a flexible suction hose 22 is connected to the suction port 20 and is in this case in particular detachably connected.
  • a handle 24 made of a rigid material.
  • a rigid suction pipe 26 can be connected to the handle 24 .
  • the suction pipe 26 is shown in a storage position on the housing 14.
  • the suction pipe 26 can be extended by a further suction pipe 26 '.
  • the suction nozzle 23 can be connected.
  • the vacuum cleaner 10 may be associated with a plurality of suction nozzles, which can be fixed to the vacuum cleaner 10, for example, to a corresponding storage device.
  • the sucker 10 is designed as a wet-dry vacuum, through which liquid is sucked or dry dirt is sucked.
  • An embodiment of a suction nozzle according to the invention 23 ( Figures 2 and 3) comprises a holding body 28.
  • the holding body 28 has a top 30 and a bottom 32. In a cleaning operation, the bottom 32 faces a surface 34 to be cleaned.
  • the holding body 28 has a front side 36 and a rear side 38.
  • a pipe section 40 is arranged on the holding body 28 on the holding body 28, a pipe section 40 is arranged.
  • the pipe section 40 forms a suction channel 42. It is in a central region of the holding body 28 fixedly disposed thereon, wherein the central portion is relative to a longitudinal direction 44 which is transverse to a distance direction between the front side 36 and the rear side 38.
  • the suction channel 42 has a suction inlet port 46, which is arranged on the underside 32 of the holding body 28. At the suction inlet port 46, a nozzle 48 is arranged on the holding body 28, which protrudes beyond the bottom 32.
  • the suction channel 42 passes through the holding body 28 from the underside 32 through the top 30 and protrudes out there. A suction flow experiences in the suction channel 42, starting from the suction inlet port 46 a
  • the pipe section 50 forms a holding tube for the holding body 28.
  • the pipe section 50 in turn can be connected to a suction pipe 26 or 26 '.
  • the suction channel 42 has, for example, a circular cross-section.
  • the suction inlet orifice 46 can lie on a funnel-shaped region 58 which, for example, has an at least approximately rectangular shape at the neck 48 and there at the suction inlet orifice 46, which then merges into a circular cross-section at the pipe piece 40.
  • a turntable 60 about an axis of rotation 62 is rotatably arranged on the holding body 28.
  • the axis of rotation 62 is oriented transversely and in particular perpendicular to the underside 32 of the holding body 28.
  • the turntable 60 is mounted on the holding body 28 via a pivot bearing 64.
  • the pivot bearing 64 comprises a pin 66 which is non-rotatably arranged on the holding body 28 and protrudes beyond its underside 32.
  • the turntable 60 has a recess 68 through which the pin 66 has penetrated.
  • the turntable 60 is rotatable about the pin 66.
  • a head 70 which has a greater width than the recess 68, is seated on the pin 66.
  • the head 70 is in particular detachable from the pin 66.
  • a bayonet closure is provided.
  • the recess 68 has the holder body 28 facing a bottom 72.
  • the spring means 74 includes a compression spring 76, which is supported at one end to the head 70 and supported at an opposite end to the bottom 72.
  • the compression spring 76 is designed so that it then exerts on the bottom 72 a corresponding pressure force on the turntable 60 in order to press it against the underside 32 of the holding body 28.
  • a corresponding gap 78 is provided between the head 70 and a corresponding region 80 around the recess 68, which allows such lifting. (In Figure 3, the gap 78 is not shown to scale.)
  • the gap 78 is dimensioned so that the turntable 60 from certain locking positions, as explained in more detail below, can be lifted out.
  • Turntable 60 has an upper side 82 facing lower side 32 of holding body 28.
  • a first abutment region 84 is formed which lies around the recess 68 and thereby lies on the rotary bearing 64. If the turntable 60 is pressed against the holding body 28 by the compression spring 76, then it rests against the underside 32 of the holding body 28 via the first contact region 84.
  • the first abutment region 84 is, for example, circular-disk-shaped.
  • a second abutment region 86 and 86 ' is formed. At this is due to the stabilization of the turntable 60 also, wherein it rests in the region of a front side 36.
  • FIG. 3 shows an exemplary embodiment in which the second abutment region 86 abuts. In another rotational position, which will be explained in more detail below, the second abutment region 86 'is applied.
  • the turntable 60 holds a first cleaning surface contact device 88 and a second cleaning surface contact device 90. These are spaced from each other and, for example, aligned parallel to each other. Between the first cleaning surface contact device 88 and the second cleaning surface contact device 90 is the rotary bearing 64 or lies the axis of rotation 62nd
  • the first cleaning surface contact device 88 and the second cleaning surface contact device 90 are designed differently for different suction applications.
  • the first cleaning surface contact device 88 has a first contact surface 92 for a surface 34 to be cleaned.
  • the second cleaning surface contact device 90 has a second contact surface 94 for a surface 34 to be cleaned.
  • the first contact surface 92 and the second contact surface 94 are included
  • the first cleaning surface contactor 88 is configured for dry suction. It has spaced brush strips 96a, 96b, between which an Einsaugraum 98 is located.
  • This suction space 98 when the brush strips 96a, 96b are placed with the first contact surface 92 on the surface to be cleaned 34, open to the surface 34 to be cleaned.
  • the suction chamber 98 is in fluid communication with a first suction outlet device 100 of the first cleaning surface contact device 88.
  • a suction flow flows through the suction space 98 to the first suction outlet device 100, which in turn can be brought into fluid-effective contact with the suction inlet port 46 in order to achieve suction.
  • the first suction outlet device 100 has one or more suction outlet openings 102.
  • the first suction outlet device 100 is in fluid-effective contact with the suction channel 42.
  • a cross-sectional area of the corresponding suction outlet port 102 is at least approximately equal to the cross-sectional area of the suction inlet port 46, d. H. These have the same dimensions.
  • the second cleaning surface contact device 90 is designed, for example, for wet extraction. It has spaced-apart suction lips 104a, 104b. Between these in turn an intake space 106 is formed, which is in fluid-effective connection with a second suction outlet 108. This second Saugauslass thanks 108 can be brought in fluid-effective connection with the suction passage 42 at a corresponding rotational position of the turntable 60.
  • a Saugauslassmündung 110 of the second Saugauslass ground 108 in one embodiment has a smaller cross-section than that
  • the first contact surface 92 and the second contact surface 94 are at an acute angle ⁇ to each other.
  • This acute angle ⁇ is for example in the range between 10 ° and 80 ° and for example in the range between 10 ° and 60 °.
  • the axis of rotation 62 is at an angle ßi to the first contact surface 92 and an angle ß 2 to the second contact surface 94th
  • the angle ßi or the angle ß 2 is for example in the range between 60 ° and 80 ° and for example at about 75 °.
  • the Saugauslassmündung 102 of the first Saugauslass prepared 100 is at an angle ⁇ the first contact surface 92.
  • This angle ⁇ is also the angle of the first abutment portion 84 to the first contact surface 92 and is also the angle of the second abutment portion 86 and 86 'to the first
  • the first abutment region 84, the second abutment region 86 or 86 ', the Saugauslrawmündung 102 and the Saugausloumündung 110 are also at an angle ⁇ 2 of the second contact surface 94.
  • the angle ⁇ 2 is at least approximately as large as the angle ⁇ .
  • the turntable 60 has a first excellent position 112 (first rotational position) in which the first suction outlet device 100 of the first cleaning surface contact device 88 is in fluid-effective connection with the suction channel 42 (FIG. 3). In this position, the second cleaning surface contact device 90 is in a parking position in which it is height-spaced to the surface 34 to be cleaned, when the first
  • a second rotational position (not shown in the figures), which is achieved from the first rotational position 112 by a rotation of the turntable 60 by an angle of 180 °, the Saugauslrawmündung 110 of the second Saugauslass Anlagen 108 is located at the Saugeinlassmündung 46 and thus is the Einsaugraum 106 fluidly connected to the suction channel 42.
  • a recess 114 is formed at the suction outlet opening 102, which is adapted to the nozzle 48 and in which the nozzle 48 can be immersed as a whole.
  • the recess 114 is over the entire surface. In it, the nozzle 48 can dip as a whole with its entire cross-sectional area.
  • a recess 116 is assigned to the upper surface 82 of the second cleaning surface contact device 90, which is designed as an annular groove.
  • annular groove an annular wall of the nozzle 48 is submerged in the second rotational position. As a result, the second rotational position is secured axially (in one direction along the axis of rotation 62).
  • the annular wall of the nozzle 48 may have a circular shape or, for example, a rectangular shape (see FIG.
  • a smaller cross-sectional area for the suction exhaust port 110 is used for a wet exhaust than for the dry exhaust with the Saugauslrawmündung 102nd
  • the suction nozzle 23 functions as follows:
  • the turntable 60 with the first cleaning surface contact device 88 and the second cleaning surface contact device 90 is arranged on the underside of the holding body 28, the turntable 60 with the first cleaning surface contact device 88 and the second cleaning surface contact device 90 is arranged.
  • rotation of the turntable 60 can be in the manner of a revolver, a first nozzle of the first planets vom- Contact device 88 and a second nozzle of the second cleaning surface contact device 90 bring into an operative position.
  • the first rotational position 112 is the operative position.
  • the active position for the second cleaning surface contact device 90 is the second rotational position.
  • the turntable 60 In order to transfer the first rotational position 112 into the second rotational position or vice versa, the turntable 60 with its abutment regions 84, 86 or 86 'is lifted off the underside 32 of the holding body 28. An operator grasps the turntable 60 and pulls it away from the underside 32 of the holding body 28 against the force of the compression spring 76. The head 70 limits the lifting height by contacting the area 80.
  • the operator may then rotate the turntable 60 about the axis of rotation 62 to obtain the desired excellent rotational position, i. H. to bring the desired cleaning surface contact device 88 or 90 into an operative position.
  • the turntable 60 By removing the head 70, the turntable 60 can be removed from the holding body 28 to clean it.
  • a suction nozzle 23 which has two different function nozzles.
  • a functional nozzle for the dry suction and a radioactive tion nozzle for the Najiabsaugung provided.
  • There are also other functions possible such as a function nozzle for hard floors and a
  • Functional nozzle for carpet and the like An operative position is achieved by the respective first rotational position 112 or the second rotational position. A transition from one active position to another can be carried out in a simple manner by rotation of the turntable 60. An operator may selectively bring the first cleaning surface contactor 88 or the second cleaning surface contactor 90 into fluid communication with the suction passage 42 and thus into fluid communication with the suction port 20 of the nipple 10.
  • rollers 118 of a roller device are arranged on the first cleaning surface contact device 88 and / or the second cleaning surface contact device 90, in order to enable drivability of the corresponding suction nozzle 23.
  • an axis of rotation 120 of a corresponding roller is parallel to the longitudinal direction 44.
  • rollers 118 are arranged in the region of outer ends of the first cleaning surface contact device 88 and the second cleaning surface contact device 90 and in particular between spaced brush strips 96a, 96b or spaced suction lips 104a, 104b are arranged.
  • the suction nozzle 23 is a reversing nozzle with turret function nozzles. LIST OF REFERENCE NUMBERS

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)

Abstract

L'invention concerne une buse d'aspiration (23) d'un dispositif d'aspiration (10), comprenant un corps de retenue (28) équipé d'au moins un conduit d'aspiration (42). Un plateau tournant (60) est disposé de manière rotative au niveau du corps de retenue (28). Au moins un premier moyen de contact de surface de nettoyage (88) équipé d'un premier moyen de sortie d'aspiration (100) et un second moyen de contact de surface de nettoyage (90) équipé d'un second moyen de sortie d'aspiration (110) sont disposés au niveau du plateau tournant (60). Dans une première position de rotation (112) du plateau tournant (60) par rapport au corps de retenue (28), le premier moyen de sortie d'aspiration (100) est en communication fluidique avec le ou les conduits d'aspiration (42). Dans une seconde position du plateau tournant (60), le second moyen de sortie d'aspiration (110) est en communication fluidique avec le ou les conduits d'aspiration (42).
PCT/EP2013/070950 2013-10-08 2013-10-08 Buse d'aspiration à deux positions de rotation WO2015051829A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2013/070950 WO2015051829A1 (fr) 2013-10-08 2013-10-08 Buse d'aspiration à deux positions de rotation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2013/070950 WO2015051829A1 (fr) 2013-10-08 2013-10-08 Buse d'aspiration à deux positions de rotation

Publications (1)

Publication Number Publication Date
WO2015051829A1 true WO2015051829A1 (fr) 2015-04-16

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2844841A (en) * 1955-06-06 1958-07-29 Electrolux Corp Dual purpose nozzle
JPH03292920A (ja) 1990-04-10 1991-12-24 Yoshihei Hattori 掃除機用吸入ノズル
JPH10192204A (ja) 1996-12-27 1998-07-28 Daewoo Electron Co Ltd 真空掃除機のブラシヘッド組立体

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2844841A (en) * 1955-06-06 1958-07-29 Electrolux Corp Dual purpose nozzle
JPH03292920A (ja) 1990-04-10 1991-12-24 Yoshihei Hattori 掃除機用吸入ノズル
JPH10192204A (ja) 1996-12-27 1998-07-28 Daewoo Electron Co Ltd 真空掃除機のブラシヘッド組立体

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