EP1721702A1 - Schleifwerkzeug zur Flächenbearbeitung von Marmor, Stein und ähnlichen - Google Patents

Schleifwerkzeug zur Flächenbearbeitung von Marmor, Stein und ähnlichen Download PDF

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Publication number
EP1721702A1
EP1721702A1 EP06009404A EP06009404A EP1721702A1 EP 1721702 A1 EP1721702 A1 EP 1721702A1 EP 06009404 A EP06009404 A EP 06009404A EP 06009404 A EP06009404 A EP 06009404A EP 1721702 A1 EP1721702 A1 EP 1721702A1
Authority
EP
European Patent Office
Prior art keywords
abrasive
tool
elements
working
abrasive tool
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
EP06009404A
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English (en)
French (fr)
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EP1721702B1 (de
Inventor
Fidanzi Erio
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.)
Master Tre Srl
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Master Tre Srl
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Publication date
Application filed by Master Tre Srl filed Critical Master Tre Srl
Publication of EP1721702A1 publication Critical patent/EP1721702A1/de
Application granted granted Critical
Publication of EP1721702B1 publication Critical patent/EP1721702B1/de
Anticipated expiration legal-status Critical
Active legal-status Critical Current

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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
    • B24B7/20—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

  • This invention concerns an abrasive tool for surface treatment or working operations on marbles, stones, ceramic products in general, and the like, which can be used in particular for surface ageing, finishing, or roughing of the aforesaid materials.
  • abrasive tools are widely known and used for surface working on marbles, stones, ceramic materials, preferably, and the like; examples of such tools are described in FR-A-2 243 588 , US-A-5,525,100 , and EP-A-0 978 242 , which are suitable to be used on conventional apparatuses for polishing and/or for surface treatment of the aforesaid materials.
  • FR-A-2 243 588 describes an abrasive tool of the aforementioned type, comprising a cylindrical body composed of a mass of binder material containing an agglomerated abrasive material in granules.
  • An abrasive tool of this kind however has the drawback that it could cause damage to the surfaces of the materials to be treated, in particular if the surface to be worked is not perfectly even, due to the compactness and stiffness of cylindrical abrasive body of the tool itself.
  • the abrasive tool tends to wear out rapidly, due to the overstress it is subjected to when it encounters unevenness on the surfaces to be worked.
  • abrasive tools of the aforementioned kind comprising in particular a support member which can be anchored to a movable member of a working device or apparatus, the support member being provided with a plurality of abrasive elements in the form of bristles or filaments composed of a resin-based material and a suitable abrasive material.
  • these abrasive tools still have the aforementioned drawbacks, due to the fact that the resin-based material of the abrasive filaments has a high stiffness, therefore causing damage to the surface to be worked, in the form of so-called "burns", which can be observed in particular when the same surface is uneven or not perfectly smooth.
  • the abrasive filaments of such tools are subjected over time to permanent deformation which is determined by the direction of operative movement given to the tool by the working device, giving rise to a rapid deterioration of the operative capacity of the same tool.
  • the main object of this invention is to provide an abrasive tool for surface treatment or working operations on marbles, stones, ceramic products, and the like, which has high operative performances, and whereby it is possible to polish or treat surfaces of the abovementioned materials, without causing damage and/or "burns" on the treated surfaces.
  • a further object of this invention is to provide a tool of the aforementioned kind, which has constant performances over time, due to the absence of permanent deformation of the tool, and which tends to evenly wear, thereby guaranteeing a longer working life of the same tool.
  • an abrasive tool for surface treatment or working operations on marbles, stones and the like comprising:
  • Figures from 1 to 4 show an abrasive tool for surface treatment or working operations on marbles, stones, ceramic materials in general, and the like, according to a first embodiment of the invention.
  • the tool indicated as a whole by the reference number 10, comprises a support member 11 conformed to be removably anchored to a movable member, not shown, of a conventional working device or apparatus for the surface treatment of the aforementioned materials.
  • the tool 10 also comprises a plurality of side by side arranged abrasive plate-like working elements 13, supported by the support member 11 and extending from one side face 11A of the same support member 11.
  • the tool 10 in particular comprises a body 12 including said plurality of side by side arranged abrasive plate-like working elements 13.
  • Each working element 13 has side walls 13', 13" and a front working surface 14 longitudinally extending between the same side walls 13', 13".
  • the abrasive plate-like elements 13 comprise a particulate abrasive filler material embedded into an elastomeric body, as specified further on.
  • the body 12 comprises at least one base body 12' from which extend the abrasive plate-like elements 13.
  • the support member 11 in turn comprises a first and a second half shell 11', 11" made of plastic material, engageable and couplable with each other, which define a seat 15 for housing and locking the base body 12'.
  • One of the half shells 11', 11' is provided with a plurality of openings 16 for protrusion of the abrasive plate-like elements 13.
  • At least one of the half shells 11', 11" for housing the base body 12' in this case the second half shell 11'', has internal surfaces provided with respective retaining ribbings 17 for retaining the same base body 12'.
  • the support member 11 comprises disengageable connecting means for removably anchoring to the movable member of the working device; in this preferential embodiment, such connecting means for anchoring the support member 11 comprise dovetail-shaped side walls 18, 19 on opposite sides of one of the half shells 11', 11" , in this case the first half shell 11', the side walls 18, 19, being designed to engage with respective anchoring seats, not shown, on the movable member of the working device, and being strengthened by means of appropriate ribs 20.
  • the first and the second half shell 11', 11" engage with each other by means of suitable coupling means, of the snap-on, restraining or other type, for example by means of coupling teeth 21 peripherally disposed on the second half shell 11", designed to engage in corresponding apertures 22 in the first half shell 11'.
  • the elastomeric body of the working elements 13 is obtained by vulcanisation, starting from an elastomeric material having a hardness comprised between 40 and 90 Shore degrees.
  • the particulate abrasive filler material embedded in the elastomeric body is comprised between 10% and 85% in weight out of the total weight, with a granulometry comprised between 16 to 1800, in relation to the use and the material which is to be worked.
  • the abrasive plate-like elements 13 can comprise 10% to 50% in weight of particulate abrasive filler material out of the total weight, with a granulometry comprised between 16 to 60, or can comprise 50% to 70% in weight of particulate abrasive filler material out of the total weight, with a granulometry comprised between 60 to 500.
  • the abrasive plate-like elements 13 can for example comprise 70% to 80% in weight of particulate abrasive filler material out of the total weight, with a granulometry comprised between 500 to 1000, or can comprise over 80% in weight of particulate abrasive filler material out of the total weight, with a granulometry comprised between 1000 and 1800.
  • the tool 10 extends according to a longitudinal axis, and has abrasive plate-like elements 13 which extend parallel to the aforesaid longitudinal axis.
  • the abrasive plate-like elements 13 may for example extend parallel to one another in a crosswise or slanted direction with respect to the longitudinal axis of the tool 10, or parallel and offset in relation to one another, or also in radial directions on the tool, or in the form of arc-shaped elements, side by side arranged to one another.
  • each abrasive plate-like elements 13 converges towards the front working surface 14.
  • a second embodiment of the tool according to this invention is shown in the figures from 5 to 9, in which the same reference numbers have been used to indicate similar or equivalent parts with respect to the previously described embodiment.
  • the tool 10 again comprises an support member 11, and a plurality of side by side arranged abrasive plate-like elements 13 comprising a particulate abrasive filler material embedded into an elastomeric body.
  • the support member 11 again comprises a first and a second half shell 11', 11" made of plastic material engageable and couplable with each other, which define a seat 15 for housing and locking a base body 12' from which extend the abrasive plate-like elements 13.
  • the tool 10 according to this embodiment differs from the previous embodiment in that the means for connecting the support member 11 to the member of the working device, are no longer defined by side walls of the same support member 11, but comprise a dovetail-shaped connecting member 23 which extends on an outer side of the second half shell 11", said connecting member 23 engaging with respective anchoring seats of member of the working device.
  • the tool 10 according to this embodiment also differs in that the abrasive plate-like elements 13 extend parallel to and offset in relation to one another in the direction of the longitudinal axis of the tool 10.
  • the support member according to this invention may be realised starting from plastic material moulded over an end portion of the abrasive plate-like elements opposite to the working surface of the same plate-like elements; conversely, whenever the abrasive plate-like elements are provided with base body, the support member may be realised starting from plastic material moulded over the same base body.
  • a tool according to this invention has high operative performances, especially due to the fact that the side by side arranged abrasive plate-like elements support one another during operation, since side walls 13', 13" contact and rest each others, and due to the fact that the plate-like elements have a continuous front working surface extending both in a longitudinal direction, and in a crosswise direction on the same tool.
  • the tool according to the invention it is possible to carry out surface treatment operations on the aforesaid materials, which are free from damage and/or "burns" on the treated surfaces, in that the elastomeric material in which the abrasive filler material is embedded is less rigid than the resin-based materials used for the conventional abrasive tools.
  • the elastomeric material which is suitable for working several materials, when the plate-like elements of the tool according to the invention encounter any unevenness on the surface to be worked, they tend to flex in a controlled manner, thereby avoiding the formation of "burns" on the surface itself.
  • a further advantage of the tool according to the invention is that it has constant performances over time, due to the fact that the plate-like elements made of elastomeric material have an elastic "memory", and consequently there are no permanent deformations of the tool; hence, the abrasive plate-like elements tend to wear evenly, and at the same time ensure a longer working life of the same tool.
  • a still further advantage of the tool is that it produces very little sediment or mud during operation, therefore proving to be substantially ecological.
  • the tool according to this invention owing to the possibility of separately moulding the support member made of two half shells, and the body comprising the abrasive plate-like working elements, it is possible to freely choose the material for the same support member, as well as to prepare tools having different operative features starting from a single common support member, by simply choosing an appropriate body having abrasive plate-like working elements, to be inserted between the half shells of the support member.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
EP06009404A 2005-05-09 2006-05-08 Schleifwerkzeug zur Flächenbearbeitung von Marmor, Stein und ähnlichen Active EP1721702B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000828A ITMI20050828A1 (it) 2005-05-09 2005-05-09 Utensile per la lavorazione superficiale di marmi pietre e simili

Publications (2)

Publication Number Publication Date
EP1721702A1 true EP1721702A1 (de) 2006-11-15
EP1721702B1 EP1721702B1 (de) 2007-11-14

Family

ID=36889013

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06009404A Active EP1721702B1 (de) 2005-05-09 2006-05-08 Schleifwerkzeug zur Flächenbearbeitung von Marmor, Stein und ähnlichen

Country Status (6)

Country Link
EP (1) EP1721702B1 (de)
AT (1) ATE378149T1 (de)
DE (1) DE602006000232T2 (de)
ES (1) ES2297785T3 (de)
IT (1) ITMI20050828A1 (de)
PT (1) PT1721702E (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20090091A1 (it) * 2009-01-27 2010-07-28 Leg Italia S R L Dispositivo di supporto per un utensile abrasivo e correlato utensile abrasivo
WO2011061665A1 (en) 2009-11-23 2011-05-26 Aros S.R.L. A tool for working stone materials and the like
ITVR20100151A1 (it) * 2010-07-23 2012-01-24 Abrasivi Adria S R L Utensile per la sagomatura superficiale di materiali lapidei
WO2013068005A1 (de) * 2011-11-08 2013-05-16 Hans Walter Theobald Gmbh Schleifkörper und halterung für einen schleifkörper
ITVI20120295A1 (it) * 2012-10-31 2014-05-01 Premier S R L Elemento abrasivo per frese fickert e procedimento di produzione di un elemento abrasivo per frese fickert
CN105643484A (zh) * 2016-03-02 2016-06-08 钱淦 一种弹性磨块

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE544763C2 (en) 2021-03-03 2022-11-08 Husqvarna Ab Abrasive tools for grinding and polishing concrete surfaces
IT202100013031A1 (it) 2021-05-20 2022-11-20 Abra Iride S P A Utensile abrasivo per la lavorazione superficiale di pietre naturali, agglomerati con resine sintetiche o con leganti idraulici e materiali ceramici.
IT202100013040A1 (it) 2021-05-20 2022-11-20 Abra Iride S P A Utensile abrasivo per la lavorazione superficiale di pietre naturali, agglomerati con resine sintetiche o con leganti idraulici e materiali ceramici.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2757491A (en) * 1953-01-16 1956-08-07 Pittsburgh Plate Glass Co Plastic polishing runner
FR2243588A5 (en) * 1973-09-12 1975-04-04 Gremilliet Claude Removable granite polishing grinding head - has rounded dovetail tenon engaging in support plate recess
EP1036523A1 (de) * 1999-02-16 2000-09-20 Master Service S.r.l. Bürste zur Oberflächenbehandlung von Materialien

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2757491A (en) * 1953-01-16 1956-08-07 Pittsburgh Plate Glass Co Plastic polishing runner
FR2243588A5 (en) * 1973-09-12 1975-04-04 Gremilliet Claude Removable granite polishing grinding head - has rounded dovetail tenon engaging in support plate recess
EP1036523A1 (de) * 1999-02-16 2000-09-20 Master Service S.r.l. Bürste zur Oberflächenbehandlung von Materialien

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20090091A1 (it) * 2009-01-27 2010-07-28 Leg Italia S R L Dispositivo di supporto per un utensile abrasivo e correlato utensile abrasivo
WO2010086801A1 (en) * 2009-01-27 2010-08-05 Leg Italia S.R.L. Supporting device for an abrasive tool and corresponding abrasive tool
WO2011061665A1 (en) 2009-11-23 2011-05-26 Aros S.R.L. A tool for working stone materials and the like
ITVR20100151A1 (it) * 2010-07-23 2012-01-24 Abrasivi Adria S R L Utensile per la sagomatura superficiale di materiali lapidei
WO2013068005A1 (de) * 2011-11-08 2013-05-16 Hans Walter Theobald Gmbh Schleifkörper und halterung für einen schleifkörper
ITVI20120295A1 (it) * 2012-10-31 2014-05-01 Premier S R L Elemento abrasivo per frese fickert e procedimento di produzione di un elemento abrasivo per frese fickert
CN105643484A (zh) * 2016-03-02 2016-06-08 钱淦 一种弹性磨块
CN105643484B (zh) * 2016-03-02 2018-02-09 钱淦 一种弹性磨块

Also Published As

Publication number Publication date
ATE378149T1 (de) 2007-11-15
EP1721702B1 (de) 2007-11-14
ITMI20050828A1 (it) 2006-11-10
ES2297785T3 (es) 2008-05-01
DE602006000232T2 (de) 2008-10-02
PT1721702E (pt) 2008-02-21
DE602006000232D1 (de) 2007-12-27

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