EP1524077A1 - Vorrichtung eines runden Schleiftellers mit dazugehörigem Schleifblatt zur direkten radialen Schleifstaubabsaugung - Google Patents
Vorrichtung eines runden Schleiftellers mit dazugehörigem Schleifblatt zur direkten radialen Schleifstaubabsaugung Download PDFInfo
- Publication number
- EP1524077A1 EP1524077A1 EP04425757A EP04425757A EP1524077A1 EP 1524077 A1 EP1524077 A1 EP 1524077A1 EP 04425757 A EP04425757 A EP 04425757A EP 04425757 A EP04425757 A EP 04425757A EP 1524077 A1 EP1524077 A1 EP 1524077A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- backup pad
- disc
- suction
- cuts
- holes
- 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
Links
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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
-
- 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
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/06—Dust extraction equipment on grinding or polishing machines
- B24B55/10—Dust extraction equipment on grinding or polishing machines specially designed for portable grinding machines, e.g. hand-guided
- B24B55/102—Dust extraction equipment on grinding or polishing machines specially designed for portable grinding machines, e.g. hand-guided with rotating tools
Definitions
- the present invention relates to devices for surface smoothing by means of flexible abrasives, mounted on a support or backup pad rotationally driven around the axis thereof, means provided for suction of dust produced by the abrasive action, and particularly a combined system of abrasive disc and backup pad for direct radial dust suction.
- a support layer which can be paper, fabric or film of various kind of plastic material
- an abrasive material layer a binding material layer, generally any kind of glue or resin
- an anti-clogging material layer such as a stearate, normally calcium or zinc stearate, the function of which is to prevent or to minimize the dust clots formation on the disc surface, resulting from the action of the abrasive itself.
- the so-composed abrasive disc is fastened to a backup pad either directly with an adhesive layer applied on the free abrasive side, or through a fabric interface (or even jersey or fine velvet) fastened on the disc side free from the abrasive, that in turn is hooked to a Velcro® layer placed on the backup pad.
- abrasive discs As it is known the diameters of the more commercially common abrasive discs are in the range between 28 and 250 mm, whereas the most common sizes are 125 and 150 mm.
- the action of abrasive discs is coupled, also for protecting the operator health, with a dust sucking action, able to generate an air flow that, passing through the backup pad itself, can convey the produced dust toward a collecting system without polluting the environment.
- the action of the anti-clogging material is not enough for this purpose and actually the abrasive discs show holes for dust suction, holes that can be arranged in different ways on the disc surface.
- Figs 1-3 show three different ways for conveying sucked air flow through the backup pad.
- Figs 1 and 2 show cross-sectional views of two backup pads manufactured according to US patent 4,616,449 and US patent 4,058,936 respectively.
- these are preferably placed in correspondence of the suction holes of the backup pad, as Figs 1-3 show, and normally are in number of 4, 5, 6 or 8 in discs having diameter of 125 mm, whereas in those having diameter of 150 mm there is no upper limit in their number.
- the suction system consists of an abrasive disc 1 with cuts 3 made without removing material and a possible central hole 5, as well as a backup pad 2 with apertures 4, substantially coinciding with the cuts 3 and a possible central hole 6.
- a preferred example of arrangement of the cuts 3 is represented in Fig.4, wherein they are disposed on circumference arcs concentric with the disc itself.
- said cuts 3 can also be arranged in a different way, such as along the disc radii.
- both disc and backup pad are represented in Figures as circular-shaped, which is the preferred shape, but not the only one possible; in case of polygonal disc, the cuts 3 can be arranged parallel to the sides.
- disc and backup pad could also have shape and size different from each other.
- Cuts 3 can be easily made by means of the same tools used for traditional discs, i.e. punches, wherein however instead of cylinder-shaped blades for obtaining holes on the disc, open, possibly shaped, blades will be used, which will generate simple slits on the disc, without removal of material, thus leaving two contiguous edges 3', 3".
- the backup pad it can be manufactured in such a way as to convey the suction into an upper air chamber directly connected to the sander suction system, as represented in Figs. 1 and 2, relating to two different embodiments of the prior art, or alternatively by connecting the suction holes to each other, through inner passages of the backup pad itself, according to a technique well known to those skilled in the art, as shown in Fig. 3, also relating to the prior art.
- every disc cut 3 corresponds, at least approximately, to a median axis of a backup pad aperture 4 and anyway extends to the inside of the correspondent aperture.
- the two edges 3', 3" of a cut 3 rise inward owing to the suction air flow thrust generated by rotation of the backup pad itself, in combination with the suction therein, consequently allowing the working dust to pass.
- the possible central hole 5 of the abrasive disc 1 will preferably be polygonal-shaped (in Fig. 4 a square-shaped one is represented), equal to the central hole 6 formed on the backup pad.
- a polygonal hole can also be connected to the suction inside the backup pad.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT001971A ITMI20031971A1 (it) | 2003-10-13 | 2003-10-13 | Sistema combinato di disco abrasivo e relativo supporto o platorello rotante per l'aspirazione radiale diretta delle polveri prodotte |
ITMI20031971 | 2003-10-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1524077A1 true EP1524077A1 (de) | 2005-04-20 |
EP1524077B1 EP1524077B1 (de) | 2006-08-09 |
Family
ID=34362414
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04425757A Active EP1524077B1 (de) | 2003-10-13 | 2004-10-08 | Kombiniertes System aus einer Schleifscheibe und einem zugehörigen Halter oder einem rotierenden Sitzpolster für direkte radiale Staubabsaugung |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1524077B1 (de) |
AT (1) | ATE335572T1 (de) |
DE (1) | DE602004001827D1 (de) |
IT (1) | ITMI20031971A1 (de) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7244170B2 (en) | 2005-09-16 | 2007-07-17 | 3M Innovative Properties Co. | Abrasive article and methods of making same |
US7252694B2 (en) | 2005-08-05 | 2007-08-07 | 3M Innovative Properties Company | Abrasive article and methods of making same |
US7258705B2 (en) | 2005-08-05 | 2007-08-21 | 3M Innovative Properties Company | Abrasive article and methods of making same |
WO2007143400A2 (en) * | 2006-05-30 | 2007-12-13 | 3M Innovative Properties Company | Abrading article comprising a slotted abrasive disc and a back-up pad |
US7329175B2 (en) | 2004-12-30 | 2008-02-12 | 3M Innovative Properties Company | Abrasive article and methods of making same |
WO2007146608A3 (en) * | 2006-06-13 | 2008-02-14 | 3M Innovative Properties Co | Abrasive article and methods of making and using the same |
US7390244B2 (en) | 2005-09-16 | 2008-06-24 | 3M Innovative Properties Company | Abrasive article mounting assembly and methods of making same |
US7393269B2 (en) | 2005-09-16 | 2008-07-01 | 3M Innovative Properties Company | Abrasive filter assembly and methods of making same |
US8206511B2 (en) | 2009-10-06 | 2012-06-26 | Ecolab Usa Inc. | Daily cleaner with slip-resistant and gloss-enhancing properties |
WO2015119521A1 (pt) * | 2014-02-06 | 2015-08-13 | Indasa -Indústria De Abrasivos, S.A. | Prato com rasgos para discos de lixagem multifuros |
US9920281B2 (en) | 2009-11-12 | 2018-03-20 | Ecolab Usa Inc. | Soil resistant surface treatment |
WO2018146372A1 (en) * | 2017-02-13 | 2018-08-16 | Kwh Mirka Ltd | Conduit arrangements in intermediate pad, backing pad, and abrading article for extracting abrading debris |
GB2590707A (en) * | 2019-12-23 | 2021-07-07 | Black & Decker Inc | Pole sander |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8585829B2 (en) | 2010-12-13 | 2013-11-19 | Ecolab Usa Inc. | Soil resistant floor cleaner |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2633859A1 (fr) * | 1988-07-08 | 1990-01-12 | Premines Sa | Support pour disque abrasif |
WO1995021729A1 (en) * | 1994-02-15 | 1995-08-17 | Catalfer Snc Di Catalfamo Giuseppe | System for clamping replaceable abrasive discs to the sides of plates on rotating dressers |
DE9414167U1 (de) * | 1994-09-01 | 1996-01-11 | Robert Bosch Gmbh, 70469 Stuttgart | Schleifteller |
US20020197940A1 (en) * | 2001-06-20 | 2002-12-26 | Giuseppe Catalfamo | Surface processing abrasive body, support provided with said body and machine comprising the processing abrasive body and support |
-
2003
- 2003-10-13 IT IT001971A patent/ITMI20031971A1/it unknown
-
2004
- 2004-10-08 EP EP04425757A patent/EP1524077B1/de active Active
- 2004-10-08 AT AT04425757T patent/ATE335572T1/de not_active IP Right Cessation
- 2004-10-08 DE DE602004001827T patent/DE602004001827D1/de active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2633859A1 (fr) * | 1988-07-08 | 1990-01-12 | Premines Sa | Support pour disque abrasif |
WO1995021729A1 (en) * | 1994-02-15 | 1995-08-17 | Catalfer Snc Di Catalfamo Giuseppe | System for clamping replaceable abrasive discs to the sides of plates on rotating dressers |
DE9414167U1 (de) * | 1994-09-01 | 1996-01-11 | Robert Bosch Gmbh, 70469 Stuttgart | Schleifteller |
US20020197940A1 (en) * | 2001-06-20 | 2002-12-26 | Giuseppe Catalfamo | Surface processing abrasive body, support provided with said body and machine comprising the processing abrasive body and support |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7329175B2 (en) | 2004-12-30 | 2008-02-12 | 3M Innovative Properties Company | Abrasive article and methods of making same |
US7252694B2 (en) | 2005-08-05 | 2007-08-07 | 3M Innovative Properties Company | Abrasive article and methods of making same |
US7258705B2 (en) | 2005-08-05 | 2007-08-21 | 3M Innovative Properties Company | Abrasive article and methods of making same |
US7244170B2 (en) | 2005-09-16 | 2007-07-17 | 3M Innovative Properties Co. | Abrasive article and methods of making same |
US7390244B2 (en) | 2005-09-16 | 2008-06-24 | 3M Innovative Properties Company | Abrasive article mounting assembly and methods of making same |
US7393269B2 (en) | 2005-09-16 | 2008-07-01 | 3M Innovative Properties Company | Abrasive filter assembly and methods of making same |
WO2007143400A2 (en) * | 2006-05-30 | 2007-12-13 | 3M Innovative Properties Company | Abrading article comprising a slotted abrasive disc and a back-up pad |
WO2007143400A3 (en) * | 2006-05-30 | 2008-02-21 | 3M Innovative Properties Co | Abrading article comprising a slotted abrasive disc and a back-up pad |
WO2007146608A3 (en) * | 2006-06-13 | 2008-02-14 | 3M Innovative Properties Co | Abrasive article and methods of making and using the same |
CN101466500B (zh) * | 2006-06-13 | 2010-12-22 | 3M创新有限公司 | 磨料制品及其制备方法和使用方法 |
US8206511B2 (en) | 2009-10-06 | 2012-06-26 | Ecolab Usa Inc. | Daily cleaner with slip-resistant and gloss-enhancing properties |
US9920281B2 (en) | 2009-11-12 | 2018-03-20 | Ecolab Usa Inc. | Soil resistant surface treatment |
WO2015119521A1 (pt) * | 2014-02-06 | 2015-08-13 | Indasa -Indústria De Abrasivos, S.A. | Prato com rasgos para discos de lixagem multifuros |
CN105517760A (zh) * | 2014-02-06 | 2016-04-20 | 茵达萨研磨工业股份有限公司 | 用于多孔砂磨盘的具有狭槽的衬垫 |
KR20160119048A (ko) * | 2014-02-06 | 2016-10-12 | 인다사-인더스트리아 드 어브레이시보스, 에스.아. | 복수의 구멍을 갖는 디스크를 샌딩하기 위한 슬롯 구비 배킹 패드 |
CN105517760B (zh) * | 2014-02-06 | 2017-12-22 | 茵达萨研磨工业股份有限公司 | 用于多孔砂磨盘的具有狭槽的衬垫 |
RU2652305C2 (ru) * | 2014-02-06 | 2018-04-25 | Индаза-Индустрия Де Абразивош, С.А. | Многощелевая опорная подошва для многоотверстных шлифовальных дисков |
AU2015214674B2 (en) * | 2014-02-06 | 2018-11-01 | Indasa - Industria De Abrasivos, S.A. | Backing pad with slots for sanding disks with multiple holes |
WO2018146372A1 (en) * | 2017-02-13 | 2018-08-16 | Kwh Mirka Ltd | Conduit arrangements in intermediate pad, backing pad, and abrading article for extracting abrading debris |
TWI781137B (zh) * | 2017-02-13 | 2022-10-21 | 芬蘭商磨卡有限公司 | 襯墊、研磨系統及從襯墊的下表面去除研磨殘屑的方法 |
US11780056B2 (en) | 2017-02-13 | 2023-10-10 | Mirka Ltd | Conduit arrangements in intermediate pad, backing pad, and abrading article for extracting abrading debris |
GB2590707A (en) * | 2019-12-23 | 2021-07-07 | Black & Decker Inc | Pole sander |
Also Published As
Publication number | Publication date |
---|---|
EP1524077B1 (de) | 2006-08-09 |
ITMI20031971A1 (it) | 2005-04-14 |
DE602004001827D1 (de) | 2006-09-21 |
ATE335572T1 (de) | 2006-09-15 |
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