EP1915236B1 - Halterung für polier- oder scheuerscheibe - Google Patents

Halterung für polier- oder scheuerscheibe Download PDF

Info

Publication number
EP1915236B1
EP1915236B1 EP06762094A EP06762094A EP1915236B1 EP 1915236 B1 EP1915236 B1 EP 1915236B1 EP 06762094 A EP06762094 A EP 06762094A EP 06762094 A EP06762094 A EP 06762094A EP 1915236 B1 EP1915236 B1 EP 1915236B1
Authority
EP
European Patent Office
Prior art keywords
holding
means according
holding means
vanes
supporting wall
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.)
Not-in-force
Application number
EP06762094A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1915236A1 (de
Inventor
Michael Heinze
Markus Klingenstein
Wilhelm Eisenmann
Jürgen Walz
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.)
Alfred Kaercher SE and Co KG
Original Assignee
Alfred Kaercher SE and 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 Kaercher SE and Co KG filed Critical Alfred Kaercher SE and Co KG
Publication of EP1915236A1 publication Critical patent/EP1915236A1/de
Application granted granted Critical
Publication of EP1915236B1 publication Critical patent/EP1915236B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D9/00—Wheels or drums supporting in exchangeable arrangement a layer of flexible abrasive material, e.g. sandpaper
    • B24D9/08—Circular back-plates for carrying flexible material
    • B24D9/085—Devices for mounting sheets on a backing plate

Definitions

  • the invention relates to a holder for a polishing or scrubbing disc (pad) of a floor cleaning machine, with a base plate which is connectable to a rotatable about a rotation axis traction sheave the floor cleaning machine and carrying a holding part with arranged at a distance from the base plate, radially outwardly pointing retaining wings ,
  • a polishing or scouring disc on a traction sheave of a floor cleaning machine such as a scrubber-drier
  • the base plate of the holder can be applied to the underside of the traction sheave and connected to this example by means of screws.
  • the polishing or scrubbing disc which is usually made of a compressible material, in particular of a microfiber material and having a central opening, are placed on the side facing away from the base plate on the holding part, wherein the retaining wings, the polishing or scrubbing disc engage under , For torque transmission, the traction sheave on the underside.
  • the polishing or scouring wheel When cleaning a floor surface, the polishing or scouring wheel gradually wears off, reducing its thickness. If it is not replaced by the user in time, there is a risk that the retaining wings will touch the floor surface and be damaged.
  • Object of the present invention is to develop a holder of the type mentioned in such a way that the risk of damage to the retaining wings is reduced in a wear of the polishing or scrubbing disc.
  • the holding part in the area surrounded by the holding wings has an axially in relation to the axis of rotation at least partially over the retaining wings projecting support wall.
  • the support wall ensures that the retaining wings do not sit on the floor surface and are damaged by this, since first the support wall touches the bottom surface, but not the retaining wings.
  • the support wall is aligned with the axis of rotation of the traction sheave, thereby grinding marks can be kept low on the bottom surface in the contacting of the rotating support wall.
  • the support wall has no openings. Rather, the support wall can form a closed underside end of the holding part.
  • the support wall is convexly curved. It can protrude in its central region in the axial direction over the retaining wings and can be aligned in alignment with the axis of rotation of the traction sheave.
  • the support wall is curved spherically in the direction away from the contact surface.
  • the holding wings are used, which can be engaged by the polishing or scouring disc.
  • a multiplicity of holding wings can be used which form a circumferential edge section in the manner of a flange.
  • the holding part has a plurality of mutually offset in the direction of rotation of the traction sheave retaining wings which protrude radially from a central collar to the outside.
  • the retaining wings can in this case be integrally connected to the collar and rigid.
  • the retaining wings connect tangentially to a circular central portion of the holding part.
  • the mechanical stability of the retaining wing is increased.
  • polishing or scrubbing disc on the holding part is simplified in a preferred embodiment, characterized in that the retaining wings are designed triangular in the bottom view.
  • the retaining wings in the bottom view have a rounded tip, because this the insertion of the polishing or scrubbing disc is further simplified in the area between the retaining wings and the base plate.
  • the holding part has three evenly spaced holding wings.
  • the holding part is cup-shaped, wherein the support wall forming a cup bottom and a protruding from the base plate collar a cup jacket, and projecting from the support wall a plurality of retaining wings radially outward.
  • the holding part thus has a one-piece construction, through which the mechanical stability is increased.
  • the holding part has reinforcing elements which are surrounded by the collar.
  • the deformability of the holding part can be reduced and its mechanical strength can be increased.
  • the reinforcing elements may comprise radially aligned spokes which internally support the collar.
  • a particularly high mechanical load capacity is achieved in an advantageous embodiment in that the spokes protrude from a central reinforcing ring.
  • the entire holder is designed as a one-piece plastic part.
  • the holder can thus be produced particularly inexpensively and is characterized by a high mechanical strength.
  • FIG. 1 schematically a floor cleaning machine in the form of a scrubber 10 is shown.
  • Such scrubber-driers are known per se to those skilled in the art, they include a chassis 12, on which two wheels are rotatably supported about a common axis 13, wherein in FIG. 1 only one impeller 14 is shown.
  • a traction sheave 16 In the direction of travel in front of the wheel, a traction sheave 16 is rotatably supported about a rotation axis 17 on the chassis 12.
  • the traction sheave can be rotated about the axis of rotation 17 by means of an electric motor 18.
  • On the underside of the traction sheave 16 a scrubbing disc (pad) 20 is held, with the aid of a floor surface can be scrubbed.
  • pad 20 On the underside of the traction sheave 16 a scrubbing disc (pad) 20 is held, with the aid of a floor surface can be scrubbed.
  • the chassis 12 carries a cleaning liquid tank 22 and a dirty liquid tank 24 on the top side.
  • Cleaning liquid from the cleaning liquid tank 22 can be applied in the usual way to the floor surface to be cleaned, and polluted liquid can be taken up by the bottom surface and transferred into the dirty liquid tank 24 by means of a suction unit 26. after the bottom surface has been scrubbed by means of the scrubbing disc 20.
  • the holder according to the invention is used, in the Figures 2 . 3 and 4 shown enlarged and generally occupied by the reference numeral 30. It comprises in the illustrated embodiment, an annular base plate 32 with three equally spaced through holes 33.
  • the base plate 32 can be applied with a drive pulley 16 facing bearing surface 35 aligned with the axis of rotation 17 to the bottom 36 and screwed by Veriitatisschrauben 37 with the traction sheave 16 become.
  • the base plate 32 On its side facing away from the contact surface 35, the base plate 32 has a plurality of tips 39, which as well as from the bottom 36 of the traction sheave 16 protruding tips 40 of the transmission of torque from the traction sheave 16 serve on the scrubbing disc 20.
  • the scrubbing disk 20 can be placed on the tips 39 and 40.
  • projecting bristles may also be used by the base plate 32 or the traction sheave 16. It may also be a Velcro connection between the traction sheave 16 and the scrubbing disc 20 may be provided.
  • the holder 30 For axially fixing the scrubbing disc 20 to the underside 36 of the traction sheave 16, the holder 30 comprises a holding part 42 arranged on the side of the base plate 32 facing away from the abutment surface 35.
  • This holder is cup-shaped and has a collar 44 aligned concentrically with the axis of rotation 17 Cup wall of the holding member 42 forms, as well as a collar completely final support wall 46, which forms a cup bottom of the holding member 42.
  • the support wall 46 is curved convexly in the direction of the contact surface 32 opposite direction. From the support wall 46 are three retaining wings 48, 49, 50 radially outward.
  • the retaining wings 48, 49, 50 are arranged in the circumferential direction of the collar 44 at a uniform distance from each other and each formed in the bottom view triangular, wherein they have a rounded bottom in the bottom view 52.
  • the support wall 46 protrudes in its central region, that is to say in a region aligned with the axis of rotation 17, in the axial direction via the retaining vanes 48, 49, 50.
  • the collar 44 surrounds a concentric therewith arranged reinforcing ring 54 which is integrally connected via a plurality of radially aligned spokes 56 with the collar 44.
  • the spokes 56 as well as the reinforcing ring 54 are integrally connected to the support wall 46.
  • the entire holder 30 forms a one-piece plastic part, which can be produced by injection molding.
  • the scrubbing disc 20 For attachment of the scrubbing disc 20 on the underside 36 of the traction sheave 16, the scrubbing disc 20 can be placed from below onto the holding part 42.
  • the convexly curved support wall 46 forms an optical centering aid.
  • the compressible scrubbing disc 20 can engage under the radially outwardly pointing retaining wings 48, 49, 50, being simultaneously impaled by the tips 39 and 40.
  • the scrubbing disc 20 can thus be fixed in a simple manner without the aid of a tool both in the axial direction and in the direction of rotation on the traction sheave 16 and the user at any time again separated from the traction sheave 16.
  • the holder 30 forms a rigid plastic part, which has a high mechanical strength. In particular, it is not necessary to make the retaining wings 48, 49, 50 material-elastic or form-elastic.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Brushes (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
EP06762094A 2005-08-09 2006-06-20 Halterung für polier- oder scheuerscheibe Not-in-force EP1915236B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005039095A DE102005039095A1 (de) 2005-08-09 2005-08-09 Halterung für Polier- oder Scheuerscheibe
PCT/EP2006/005891 WO2007017002A1 (de) 2005-08-09 2006-06-20 Halterung für polier- oder scheuerscheibe

Publications (2)

Publication Number Publication Date
EP1915236A1 EP1915236A1 (de) 2008-04-30
EP1915236B1 true EP1915236B1 (de) 2009-05-13

Family

ID=36997249

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06762094A Not-in-force EP1915236B1 (de) 2005-08-09 2006-06-20 Halterung für polier- oder scheuerscheibe

Country Status (5)

Country Link
EP (1) EP1915236B1 (da)
AT (1) ATE431224T1 (da)
DE (2) DE102005039095A1 (da)
DK (1) DK1915236T3 (da)
WO (1) WO2007017002A1 (da)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8876577B2 (en) 2010-11-09 2014-11-04 Karcher North America, Inc. Floor finish removal and cleaning apparatus
CN104762902A (zh) * 2015-03-23 2015-07-08 李跃东 一种驾驶式洗地车地面清洁头
CN113547400A (zh) * 2021-07-22 2021-10-26 河北天昕建设集团有限公司 建筑墙面修整装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4541207A (en) * 1984-02-06 1985-09-17 Flo-Pac Corporation Pull-apart mounting hub
DE8617171U1 (de) * 1986-06-27 1986-10-09 Hako-Werke GmbH & Co, 2060 Bad Oldesloe Fahrbare Bodenreinigungsmaschine
US4888843A (en) * 1988-10-27 1989-12-26 Hako Minuteman, Inc. Holder for rotary pad

Also Published As

Publication number Publication date
DE102005039095A1 (de) 2007-02-15
ATE431224T1 (de) 2009-05-15
DK1915236T3 (da) 2009-07-20
EP1915236A1 (de) 2008-04-30
DE502006003732D1 (de) 2009-06-25
WO2007017002A1 (de) 2007-02-15

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