EP1661666A1 - Plateau de support pour des segments abrasifs - Google Patents

Plateau de support pour des segments abrasifs Download PDF

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Publication number
EP1661666A1
EP1661666A1 EP05111313A EP05111313A EP1661666A1 EP 1661666 A1 EP1661666 A1 EP 1661666A1 EP 05111313 A EP05111313 A EP 05111313A EP 05111313 A EP05111313 A EP 05111313A EP 1661666 A1 EP1661666 A1 EP 1661666A1
Authority
EP
European Patent Office
Prior art keywords
grinding
holder plate
plate
substantially parallel
base
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.)
Granted
Application number
EP05111313A
Other languages
German (de)
English (en)
Other versions
EP1661666B1 (fr
Inventor
Hakan Thysell
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.)
HTC Sweden AB
Original Assignee
HTC Sweden AB
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 HTC Sweden AB filed Critical HTC Sweden AB
Publication of EP1661666A1 publication Critical patent/EP1661666A1/fr
Application granted granted Critical
Publication of EP1661666B1 publication Critical patent/EP1661666B1/fr
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
    • B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
    • B24D7/06—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor with inserted abrasive blocks, e.g. segmental
    • B24D7/066—Grinding blocks; their mountings or supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/10—Single-purpose machines or devices
    • B24B7/18—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/20—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
    • B24B7/22—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain

Definitions

  • the present invention relates to a holder plate supporting grinding elements for grinding and/or polishing of hard floor surfaces such as stone, concrete, terrazzo or similar.
  • Holder plates supporting grinding elements are known from EP-1 321 233 or from PCT/SE2004/000905.
  • a multiplicity, normally at least three, such holder plates supporting grinding elements are mounted on a driven grinding plate (Fig. 2) that rotates flat, substantially parallel with the floor surface, which plate is in turn mounted in a grinding machine of for example the type shown in W002/062524 or EP-0 700 327.
  • the grinding plate with the holder plate with grinding elements mounted is thus brought into contact with the floor surface, where the grinding plate is rotated and the floor surface ground and/or polished.
  • At least two circular or rectangular grinding elements are arranged on the holder plate.
  • the one grinding element is normally arranged substantially parallel with the tangent of the grinding plate and the other grinding element is normally set at an angle to the first as illustrated in Fig. 1.
  • This known arrangement of grinding elements is motivated by a desire to drive the removed material out towards the periphery of the grinding plate.
  • One object of the present invention is to achieve an improved or alternative holder plate supporting a grinding element.
  • a holder plate supporting a grinding element is achieved for grinding and/or polishing of hard floor surfaces of stone, concrete, terrazzo or similar.
  • the holder plate has elements for mounting this on a driven grinding plate that rotates flat, substantially parallel to the floor surface.
  • the grinding plate supports at least two grinding elements, where each of the grinding elements has the form of a geometric body which is defined by two substantially parallel base surfaces spaced apart from each other and at least one side surface extending between the edges of the base surfaces.
  • the base surfaces are substantially parallel with the holder plate and substantially oblong.
  • the grinding elements are arranged on the holder plate so that when the holder plate is mounted on the grinding plate, a longitudinal direction of the base surface concerned is substantially parallel with a tangent of the grinding plate located at the grinding element.
  • grinding element refers to an element with a grinding and/or polishing effect.
  • Such elements can comprise a matrix of metal or plastics resin which contain grinding particles of any size and any material, for example a grinding agent such as PCD and/or diamond.
  • the term "for grinding and/or polishing” here refers to a holder plate with only a grinding and/or polishing element and hence not holder plates which have one or more cutting edges for cutting of floor surfaces.
  • the "mounting element” is an arrangement which can be used to attach the holder plate to the grinding disc.
  • Examples of such elements can be threaded holes for fastening the holder plate to the grinding disc by means of screws as shown in EP-1 321 233.
  • Another example of such an element can be the surrounding flanges as shown in
  • each of the base surfaces has a longitudinal direction and a transverse direction substantially orthogonal in relation thereto, such that the extent of the base surface is longer in the longitudinal direction than in the transverse direction.
  • the grinding elements are thus arranged on the holder plate so that the longitudinal direction of their respective base surfaces is substantially parallel to a tangent on the grinding plate.
  • substantially parallel to a tangent includes a degree of angular deviation from the tangent for example so that the longitudinal directions of the grinding elements can be parallel with each other. In practice this can mean a relatively small deviation from the tangent as the grinding plate and in particular its radius is relatively large compared with the grinding elements.
  • the grinding element By arranging the grinding element in accordance with the invention, a reduced sensitivity is achieved to removed material located on the floor surface since the grinding element has a smaller area affected by such removed material.
  • the holder plate By arranging the grinding element with its longitudinal direction parallel to the tangent, the holder plate itself is made stiffer, reducing the risk of this falling away from the grinding plate when such assembly elements as shown in PCT/SE2004/000905 are used. Also a more even flow of coolant is achieved in applications where coolant is utilised.
  • the base surface can taper in a first direction parallel to the tangent.
  • the base surface can taper in a second direction opposite the first. By tapering the base surface in the opposite direction, the grinding element can be rotated in either direction i.e. clockwise or counter-clockwise.
  • the base surface at its one end in the longitudinal direction has a tip pointing in the longitudinal direction. Because the base surface has a tip, an improved scraping effect is achieved which is advantageous when for example paint residue or similar remains on and should be removed from the floor surface.
  • the base surface is rounded at its one end in the longitudinal direction. Because the base surface is rounded there is less risk that scratches will occur on the floor surface.
  • Fig. 1 shows a known holder plate 1 supporting grinding elements which is fitted with two grinding elements 2a, 2b arranged in the traditional manner.
  • Fig. 2 shows a known grinding plate 3 on which are arranged three holder plates 1 supporting grinding elements. It can be seen that the number of holder plates 1 arranged on the grinding plate can vary as required. Normal configurations comprise 3-6 holder plates 1.
  • Fig. 3 shows a holder plate 1 supporting grinding elements according to the invention.
  • On the holder plate 1 are arranged two grinding elements 2a, 2b in such a way that their respective longitudinal direction L is substantially parallel to a tangent on the grinding plate 3 on which the holder plate 1 is to be arranged.
  • the angles V 1 and V 2 between the longitudinal directions L 1 , L 2 of the respective grinding elements 2a, 2b, and the radius r of the grinding plate are essentially equally large but they can also deviate slightly from each other for example so that the longitudinal directions L 1 , L 2 of the grinding elements 2a, 2b are parallel to each other.
  • the grinding element has the form of a three-dimensional body which is defined by two substantially parallel base surfaces B (Fig. 5) and side surfaces S extending between the opposing edges of the base surfaces (Fig. 5).
  • Figs. 4a-4g show for example embodiments of geometries of the base surface.
  • the grinding elements can be considered oblong as they have a respective length L which is greater than their respective with t.
  • all base surfaces B of the grinding element are substantially similar.
  • the base surfaces are substantially of the same size.
  • the base surfaces comprise a first base surface located nearest the holder plate and a second base surface located remote from the holder plate, where the first base surface has a larger area than the second.
  • the grinding element thus tapers from the holder plate 1 and downwards towards the floor surface to be ground.
  • the base surfaces comprise a first base surface located nearest the holder plate and a second base surface located remote from the holder plate, where the first base surface has a smaller area than the second.
  • the base surface can taper in a first direction parallel to the tangent but also in a second direction opposite the first.
  • the distal end of the base surface in the longitudinal direction L can have a rounding 4.
  • the base surface can have a tip 5 pointing in the longitudinal direction.
  • the holder plate 1 according to the present invention can be fitted with an arbitrary number of grinding elements for example 1, 2, 3, 4, 5 or 6, depending on requirements and the space available on the holder plate 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
EP05111313A 2004-11-29 2005-11-25 Plateau de support pour des segments abrasifs Not-in-force EP1661666B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0402895A SE528596C2 (sv) 2004-11-29 2004-11-29 Slipelementbärande hållarplatta monterad parallellt med slipplattans tangent

Publications (2)

Publication Number Publication Date
EP1661666A1 true EP1661666A1 (fr) 2006-05-31
EP1661666B1 EP1661666B1 (fr) 2008-02-13

Family

ID=33538396

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05111313A Not-in-force EP1661666B1 (fr) 2004-11-29 2005-11-25 Plateau de support pour des segments abrasifs

Country Status (6)

Country Link
EP (1) EP1661666B1 (fr)
CN (1) CN1781664A (fr)
AT (1) ATE385878T1 (fr)
DE (1) DE602005004723T2 (fr)
ES (1) ES2302137T3 (fr)
SE (1) SE528596C2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202012009283U1 (de) * 2012-09-27 2014-01-22 Heger Gmbh European Diamond Tools Grundscheibe für eine Topfschleifscheibe

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2051618A (en) * 1934-10-16 1936-08-18 Bridgeport Safety Emery Wheel Block for sectional grinding wheels
EP0700327A1 (fr) 1992-10-22 1996-03-13 THYSELL, Hakan Machine de surfa age a disque rotatif de type planetaire
WO2002062524A1 (fr) 2001-02-06 2002-08-15 Thysell Haakan Disposition d'une machine a aplanir les sols
EP1321233A1 (fr) 2001-12-12 2003-06-25 Gerätebau Wiedtal Schützeichel KG Outil de polissage
DE20315207U1 (de) * 2003-10-01 2004-02-26 H. Riedel & Sohn Gmbh Drehteller einer Plattenschleifmaschine
WO2004108352A2 (fr) 2003-06-11 2004-12-16 Htc Sweden Ab Plateau porteur supportant un element abrasif et plaque abrasive
DE102004005627A1 (de) * 2004-02-04 2005-08-25 Elargo Engineering Gmbh Schleifgerät, insbesondere zum Schleifen von Natur- und Kunststein

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2051618A (en) * 1934-10-16 1936-08-18 Bridgeport Safety Emery Wheel Block for sectional grinding wheels
EP0700327A1 (fr) 1992-10-22 1996-03-13 THYSELL, Hakan Machine de surfa age a disque rotatif de type planetaire
WO2002062524A1 (fr) 2001-02-06 2002-08-15 Thysell Haakan Disposition d'une machine a aplanir les sols
EP1321233A1 (fr) 2001-12-12 2003-06-25 Gerätebau Wiedtal Schützeichel KG Outil de polissage
WO2004108352A2 (fr) 2003-06-11 2004-12-16 Htc Sweden Ab Plateau porteur supportant un element abrasif et plaque abrasive
DE20315207U1 (de) * 2003-10-01 2004-02-26 H. Riedel & Sohn Gmbh Drehteller einer Plattenschleifmaschine
DE102004005627A1 (de) * 2004-02-04 2005-08-25 Elargo Engineering Gmbh Schleifgerät, insbesondere zum Schleifen von Natur- und Kunststein

Also Published As

Publication number Publication date
DE602005004723D1 (de) 2008-03-27
ES2302137T3 (es) 2008-07-01
EP1661666B1 (fr) 2008-02-13
SE0402895L (sv) 2006-05-30
SE0402895D0 (sv) 2004-11-29
SE528596C2 (sv) 2006-12-27
ATE385878T1 (de) 2008-03-15
DE602005004723T2 (de) 2009-02-12
CN1781664A (zh) 2006-06-07

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