WO2003068044A1 - Appareil de nettoyage de sol - Google Patents

Appareil de nettoyage de sol Download PDF

Info

Publication number
WO2003068044A1
WO2003068044A1 PCT/EP2002/006247 EP0206247W WO03068044A1 WO 2003068044 A1 WO2003068044 A1 WO 2003068044A1 EP 0206247 W EP0206247 W EP 0206247W WO 03068044 A1 WO03068044 A1 WO 03068044A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
adjusting element
floor cleaning
cleaning device
recesses
Prior art date
Application number
PCT/EP2002/006247
Other languages
German (de)
English (en)
Inventor
Jürgen Binder
Thomas Hofer
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 EP02735410A priority Critical patent/EP1474028B1/fr
Priority to AT02735410T priority patent/ATE306842T1/de
Priority to DE50204636T priority patent/DE50204636D1/de
Priority to AU2002310759A priority patent/AU2002310759A1/en
Publication of WO2003068044A1 publication Critical patent/WO2003068044A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • E01H1/10—Hydraulically loosening or dislodging undesirable matter; Raking or scraping apparatus ; Removing liquids or semi-liquids e.g., absorbing water, sliding-off mud
    • E01H1/101—Hydraulic loosening or dislodging, combined or not with mechanical loosening or dislodging, e.g. road washing machines with brushes or wipers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • B08B3/026—Cleaning by making use of hand-held spray guns; Fluid preparations therefor

Definitions

  • the invention relates to a floor cleaning device with a hood-shaped housing which is open at the bottom and in which a spray arm with at least one nozzle which delivers a cleaning medium in the direction of the open underside of the housing is freely rotatable about a vertical axis of rotation, with a bearing body which is arranged in a height-adjustable manner in the housing for the spray arm, the height of which is adjusted by an adjusting element which can be fixed on the housing in the direction of adjustment of the bearing body and can be screwed relative to the housing and screwed onto an external thread of the bearing body.
  • Such a floor cleaning device is known for example from EP 1 027 857 AI.
  • the height is adjusted by a nut-like support ring, which is arranged on the outside of the housing and can be turned at any time. Therefore, there is a risk in operation that the bearing body is inadvertently adjusted and thus a change in the height of the spray arm once set. It should be noted that the floor cleaning device can be excited to vibrate due to the rapid rotation of the spray arm, which can lead to a loosening and adjustment of the support ring.
  • This object is achieved according to the invention in a floor cleaning device of the type described in the introduction in that the adjusting element can be connected in a rotationally fixed manner to the housing by a releasable connection. This non-rotatable connection prevents unintentional twisting of the adjustment element and thus an unintentional height adjustment.
  • the adjusting element when the adjusting element relative to the housing parallel to the adjustment direction of the bearing body between a locking position in which it is held in a rotationally fixed manner relative to the housing and a release position in which it can be freely rotated relative to the housing is particularly advantageous.
  • the adjusting element is therefore not completely fixed in the axial direction on the housing, but can at least be displaced to a small extent, and this displacement is used to move the locking element between the locking position and the release position.
  • the adjusting element is raised in the locking position in relation to the release position.
  • a force is exerted on the spray arm and its bearing body by the cleaning medium jet directed against the surface to be cleaned, which force tries to lift the bearing body relative to the housing.
  • This lifting force is used to move the adjusting element into the locking position. In operation, this lifting force inevitably always occurs, so that during operation the adjusting element is always automatically shifted into the locking position without the user having to do this specifically.
  • the bearing body and Spray arm down again due to its own weight, so that the adjusting element then automatically comes into the release position in which the user can adjust the height of the bearing body by rotating the adjusting element. The user does not have to worry about the non-rotatable locking of the adjusting element, this takes place solely on the basis of the reaction forces of the cleaning media jet.
  • the projections and recesses are arranged in such a way that in different angular positions of the adjusting element, projections can engage in recesses in a form-fitting manner. This makes it possible to fix the adjusting element in different angular positions, ie the adjusting element can be rotated sensitively and is then fixed in any case in the angular position reached.
  • the projections and recesses are arranged on a circle which is concentric with the axis of rotation of the adjusting element.
  • the adjusting element is screwed onto a thread with a large pitch, so that, for example, only one or two turns of the adjusting element are necessary to cover the entire height adjustment area.
  • the adjusting element is screwed onto the bearing body at the end facing away from the spray arm and surrounds this end in the form of a hood.
  • the adjusting element thus forms a hood-shaped operating handle and can be rotated very easily in this way to adjust the height of the bearing body.
  • the adjusting element can carry an annular flange which runs concentrically to its axis of rotation and which engages under an annular flange on the housing, which in turn forms a stop against further lifting of the adjusting element.
  • the two ring flanges carry projections and recesses for the rotationally fixed connection of the adjusting element and the housing.
  • a stop can be provided on the housing, which limits displacement of the adjusting element in the direction of the release position.
  • the adjustment element can only be displaced to a small extent in the axial direction between the locking position and the release position, a displacement of just a few millimeters is sufficient here to shift the adjustment element between these two extreme positions and thereby optionally that To release the adjustment element against rotation or to lock it against rotation.
  • this axial displacement of the adjusting element can be considerably smaller than the height adjustment which the bearing body undergoes by rotating the adjusting element.
  • Figure 1 A sectional view through a floor cleaning device with a height adjustment of the spray arm with an adjusting element in the release position and
  • Figure 2 A sectional view of the floor cleaning device of Figure 1 with a cutting plane rotated by 90 ° during operation of the floor cleaning device with the adjusting element in the locking position.
  • the floor cleaning device 1 shown in the drawing comprises a hood-shaped housing 2, which is circular in cross section, with a circumferential side wall 3, an open bottom 4 and a closed top 5.
  • a vertical bearing bush 6 with a continuous bearing bore 7 is arranged in the center of the top 5. in which a bearing shaft 8 is mounted for longitudinal displacement.
  • This bearing shaft 8 carries at its end protruding downward from the bearing bush 6 and entering the interior 9 of the housing 2 radially protruding spray arms 10 which end in nozzles 11.
  • These nozzles 11 generate an obliquely downward jet a cleaning medium which exerts a torque on the spray arm 10 by reaction forces when it emerges from the nozzles 11 and thereby sets it in rotation.
  • the spray arm 10 is rotatably mounted on the bearing shaft 8 so that when the spray arm 10 rotates, it rotates on its bearing on the bearing shaft 8, while the bearing shaft 8 is received in the bearing bore 7 in a rotationally fixed manner and can only be displaced in the axial direction.
  • the supply of the cleaning medium takes place via a feed pipe 12 opening radially into the bearing bush 6, an annular space 14 surrounding the bearing shaft 8 in a recessed section 13, which is sealed at both ends by seals 15 with respect to the bearing bush 6, a radial bore 16 and a further one central bore 17 in the bearing shaft 8 and finally through a flow channel 18 in the spray arm 10.
  • the bearing shaft protrudes upward out of the bearing bush 6 and carries a coarse thread 20 there with a very high pitch.
  • a threaded sleeve 21 is screwed onto this coarse thread 20, which is closed at its upper end 22 and is connected in one piece to a hood-shaped gripping surface 23.
  • This gripping surface 23 ends at its lower edge 24 in a radially outwardly projecting ring flange 25 which concentrically surrounds the axis of rotation of the threaded sleeve and which on its upper side has spherical cap-shaped projections 26 distributed over the circumference.
  • the ring flange 25 with the projections 26 is opposite a ring flange 27 covering this ring flange 25, which has spherical recesses 28 on its side facing the ring flange 25 for receiving the projections 26 of the ring flange 25, this ring flange 27 is held on a housing part 29 which the Bearing bush 6 surrounds concentrically and is firmly connected to the top 5 of the housing 2.
  • This rotation leads to the fact that the bearing shaft 8 is adjusted in the axial direction, that is, the height of the spray arm 10 can be adjusted above the lower edge of the housing 2.
  • the rotation of the threaded sleeve 21 is easily possible since the threaded sleeve 21 is easy to grip through the hood-shaped gripping surface 23, and it is also easily possible for the user to press the threaded sleeve 21 down when twisting to ensure that during the twisting the threaded sleeve 21 always the projections 26 emerge from the recesses 28 of the annular flange 27. Then it is also ensured that the threaded sleeve 21 is always freely rotatable.
  • the spray arms 10 are rotated by the reaction forces of the cleaning medium jet and the bearing shaft 8 is displaced upwards.
  • this displacement is only possible to a small extent until the two ring flanges 25 and 27 have come so close that the projections 26 enter the recesses 28.
  • a further displacement of the bearing shaft 8 is prevented, so that the height of the spray arms 10 is defined.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Pinball Game Machines (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

La présente invention concerne un appareil de nettoyage de sol (1) comprenant un boîtier (3) en forme de cloche, ouvert vers le bas, dans lequel se trouve un bras de pulvérisation (10) qui est monté librement rotatif autour d'un axe de rotation vertical et comprend au moins une buse (11) libérant un agent de nettoyage en direction de la face inférieure ouverte (4) du boîtier. Un corps de support (8) destiné au bras de pulvérisation (10) est monté réglable en hauteur dans ledit boîtier (2). Le réglage en hauteur est effectué grâce à un élément de réglage (21, 23) qui peut être fixé sur le boîtier (2) dans la direction de réglage du corps de support et qui peut être vissé sur un filetage externe du corps de support (8) de manière à pouvoir tourner par rapport au boîtier (2). Afin d'empêcher un réglage involontaire de l'élément de réglage (21, 23), ce dernier peut être connecté fixe en rotation au boîtier (2, 29) au moyen d'un raccord amovible (26, 28).
PCT/EP2002/006247 2002-02-14 2002-06-07 Appareil de nettoyage de sol WO2003068044A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP02735410A EP1474028B1 (fr) 2002-02-14 2002-06-07 Appareil de nettoyage de sol
AT02735410T ATE306842T1 (de) 2002-02-14 2002-06-07 Bodenreinigungsgerät
DE50204636T DE50204636D1 (de) 2002-02-14 2002-06-07 Bodenreinigungsgerät
AU2002310759A AU2002310759A1 (en) 2002-02-14 2002-06-07 Floor cleaning device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10206013.4 2002-02-14
DE10206013A DE10206013C1 (de) 2002-02-14 2002-02-14 Bodenreinigungsgerät

Publications (1)

Publication Number Publication Date
WO2003068044A1 true WO2003068044A1 (fr) 2003-08-21

Family

ID=7713805

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/006247 WO2003068044A1 (fr) 2002-02-14 2002-06-07 Appareil de nettoyage de sol

Country Status (5)

Country Link
EP (1) EP1474028B1 (fr)
AT (1) ATE306842T1 (fr)
AU (1) AU2002310759A1 (fr)
DE (2) DE10206013C1 (fr)
WO (1) WO2003068044A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004013057B3 (de) * 2004-03-05 2005-07-14 Alfred Kärcher Gmbh & Co. Kg Flächenreinigungskopf
DE102007029245A1 (de) 2007-06-13 2008-12-18 Alfred Kärcher Gmbh & Co. Kg Flächenreinigungskopf
DE102008011506A1 (de) 2008-02-22 2009-08-27 Alfred Kärcher Gmbh & Co. Kg Flächenreinigungskopf
CN108867491B (zh) * 2018-06-27 2020-06-02 芜湖凯奥尔环保科技有限公司 一种多功能环保车
DE102019133980A1 (de) * 2019-12-11 2021-06-17 Alfred Kärcher SE & Co. KG Reinigungskopf

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3829019A (en) * 1972-02-02 1974-08-13 Chaska Chem Co Inc Spinner assembly
FR2750898A1 (fr) * 1996-07-11 1998-01-16 Cogema Dispositif decapeur a ultra haute pression et systeme de traitement de surfaces utilisant ce dispositif
EP1027858A1 (fr) * 1999-02-10 2000-08-16 Alto Danmark A/S Outil de nettoyage

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1027857A1 (fr) * 1999-02-10 2000-08-16 Alto Danmark A/S Outil de nettoyage

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3829019A (en) * 1972-02-02 1974-08-13 Chaska Chem Co Inc Spinner assembly
FR2750898A1 (fr) * 1996-07-11 1998-01-16 Cogema Dispositif decapeur a ultra haute pression et systeme de traitement de surfaces utilisant ce dispositif
EP1027858A1 (fr) * 1999-02-10 2000-08-16 Alto Danmark A/S Outil de nettoyage

Also Published As

Publication number Publication date
DE50204636D1 (de) 2005-11-24
AU2002310759A1 (en) 2003-09-04
ATE306842T1 (de) 2005-11-15
EP1474028A1 (fr) 2004-11-10
EP1474028B1 (fr) 2005-10-19
DE10206013C1 (de) 2003-05-22

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