EP2286959B1 - Scrubbing-grinding tool - Google Patents
Scrubbing-grinding tool Download PDFInfo
- Publication number
- EP2286959B1 EP2286959B1 EP10167695.5A EP10167695A EP2286959B1 EP 2286959 B1 EP2286959 B1 EP 2286959B1 EP 10167695 A EP10167695 A EP 10167695A EP 2286959 B1 EP2286959 B1 EP 2286959B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- grinding
- radius
- fiber
- curvature
- support plate
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
-
- 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
- B24D7/02—Wheels in one piece
- B24D7/04—Wheels in one piece with reinforcing means
Definitions
- the invention relates to a snap-grinding tool according to the preamble of claim 1.
- Schmpp grinding tools are known in practice in large numbers.
- the fiber grinding wheels are flexible and releasably mounted on the support plate.
- the mounting on the support plate is done by a screw-on flange in the Kröpfungs Kunststoff the fiber grinding wheel.
- the service life of the fiber grinding wheel is short, for example only about 1 minute.
- the abrasive grain of the fiber abrasive disc shows its first signs of wear, whereby the surface of the workpiece to be machined is no longer completely uniform. The fiber grinding wheel is therefore already replaced after this time.
- Abrasive base are known, as they are common practice, which thus consist of a serving as a support or underlay elastically flexible disc on which an abrasive grain is attached by means of a synthetic resin.
- a grinding tool having the features of the preamble of claim 1 is known, which has a mounted on a backsheet resin-bonded abrasive grain layer, wherein the backsheet is adhered by means of an adhesive layer on a Supporting substrates.
- the backsheet can be made of cotton fabric.
- the Supporting Substrates may consist of a phenolic resin impregnated glass fiber fabric.
- WO 2008/035934 A1 is an abrasive coated abrasive tool known, which is formed as a composite tool and is produced in a single manufacturing process as a flat grinding tool. It has in the middle an opening for receiving the drive shaft of a grinding machine.
- a binder layer has been applied to a vulcanized fibrous substrate and abrasives have been spread. This was dried in an oven and then a second make coat was applied. This is by nature a uniform composite train.
- an abrasive article comprising a plastic semi-rigid plastic disc having an abrasive coated abrasive fiber disc secured thereto by an adhesive layer on a vulcanized fiber.
- the weakly cambered, ie convexly curved towards the grinding side plastic plate with fiber grinding disc is firmly connected to a concavely curved counter-plate, wherein the plastic plate and the counter-plate are clamped together by means of a bolt.
- a nut is attached, into which the bolt is screwed.
- silicon carbide ie a ceramic grain, can be used as the abrasive grain.
- WO 02/074 494 A1 is a grinding tool which has a flat support plate on which a grinding wheel is fixed by means of hot melt adhesive.
- the grinding wheel itself consists of a flexible carrier material, on which the abrasive grain is attached.
- the flexible grinding wheel projects beyond the edge of the support plate and is convexly curved in this area. In the area of the carrier plate, it is even. It is a tool for smoothing drywall.
- the invention has for its object to design a roughing-grinding tool of the generic type so that it has a long service life with simple and inexpensive construction.
- the fiber disc is made of vulcanized fiber, a material that has been known for a century and a half and made from cotton fibers. Surprisingly, it has also been found that the roughing and grinding tool is far superior to conventional roughing wheels both in terms of machined mass per unit time and in terms of total machinable mass. This is especially true because Ceramic grain is used as an abrasive.
- the grinding wheel with the abrasive coating is slightly convex towards the grinding side. Since such roughing wheels, ie roughing and grinding tools, are used on hand-held grinding machines, an exact angular position of the grinding tool with respect to the surface to be ground is generally not maintained during use. The slight curvature causes no high local surface pressures between the grinding wheel and the workpiece to be machined, with the result of a corresponding tearing of abrasive grain occur. This leads to a considerable increase in the service life or the cutting performance.
- the further subclaims give advantageous developments again.
- FIGS. 1 to 3 illustrated roughing-grinding tool has a in the usual way from impregnated with phenolic resin and compressed glass fibers existing support plate 1, which has a flat, annular clamping area 2 in the usual way, in which a likewise circular opening 3 for receiving a drive shaft Drive machine is formed.
- the annular clamping region 2 surrounding the opening 3 is provided with a metal ring 5 on the rear side of the support plate 1 remote from a grinding side 4.
- the clamping area 2 is adjoined by a cranking area 6, which is likewise of annular design and rises radially to the axis 7 of the carrier plate 1 towards the grinding side 4.
- annular closes Grinding area 8 which is inclined radially to the axis 7 against the cranking area 6, namely radially to the axis 7 outwardly from the grinding side 4 away.
- This embodiment of a support plate 1 is well known and common.
- a fiber grinding wheel 9 is attached on the grinding side 4, which is a so-called abrasive on a base, which consists of a fiber disk 10 as a support or base and a resin-bonded abrasive coating 11.
- the fiber disk 10 is made of vulcanized fiber, which is a bound, pressed material based on cotton fibers.
- the abrasive coating 11 is formed by ceramic grain 11.1, which is produced from a microgranulate by sintering. The microgranules break individually from the respective grain, so that thereby the stability of the ceramic grain 11.1 is significantly increased compared to conventional abrasives.
- the resin bonded abrasive pad 11 is bonded to the fiber disk 10 in the usual manner.
- the fiber disk 10 of the fiber grinding wheel 9 is connected to the grinding side 4 of the support plate 1 by means of an adhesive layer 12.
- the radius R1 of the support plate 1 is - like FIG. 1 can be removed - slightly smaller than the radius R9 of the fiber grinding wheel 9, without the fiber grinding wheel 9 projecting radially to the axis 7 on the outer edge 13 of the support plate 1.
- the cranking region 6 has a radius R6 from the axis 7 at the transition to the main grinding region 8.
- the main grinding area 8 of this non-inventive grinding tool has a radius R8 from the axis 7 which is equal to the radius R9 of the fiber grinding wheel 9.
- FIG. 4 the same or similar parts or regions are present as in the embodiment according to the FIGS. 1 to 3 , the same reference numbers are used with a prime.
- the support plate 1 ' consists of a glass cloth impregnated with epoxy resin. He has - as in the embodiment of the FIGS. 1 to 3 - a constant thickness h.
- the planar annular clamping area 2 ' is likewise formed with a circular opening 3' for receiving a drive shaft of a drive machine.
- the annular clamping region 2 'surrounding the opening 3' is not reinforced with a metal ring in this exemplary embodiment.
- the curvature region 6 'adjoining the clamping region 2' is likewise of annular design and rises radially to the axis 7 'of the carrier plate 1' towards the grinding side 4 '.
- the planar clamping region 2 ' merges with a radius of curvature r2' in the cranking region 6 '.
- the cranking region 6 ' is adjoined in turn by an annular main grinding region 8', which extends radially to the axis 7 'against the cranking region 6', namely radially to the axis 7 'outwardly from the grinding side 4' is inclined. Seen from the axis 7 'to the outside of the grinding area 8' so from the grinding side 4 'inclined away.
- FIG. 4 Also in the design FIG. 4 is on the grinding side 4 'of the support plate 1' a fiber grinding disc 9 'attached.
- This is also a so-called abrasive on a base, which consists of a fiber disk 10 'as a support or base and a resin-bonded abrasive coating 11'.
- the fiber grinding wheel 9 ' is thus a self-contained grinding wheel, which could be used, as described above for the prior art according to EP 1 741 515 B1 has been described. It is flexible, so flexible.
- the structure of the fiber grinding wheel 9 ' corresponds to the above to the FIGS. 1 to 3 already described.
- the abrasive coating 11 'thus has ceramic grain 11.1'.
- the fiber slice 10 'of the fiber abrasive disc 9' connected to the support plate 1 'by means of an adhesive layer 12'.
- cranking region 6 ' is in the grinding area 8' with a radius of curvature r6 'on.
- the main grinding area 8 'itself is also curved, slightly convex to the grinding side 4' with a radius of curvature r8 '.
- the outer grinding area 15 'adjoining the main grinding area 8' is inclined radially outward away from the grinding side 4 'and convexly curved toward the grinding side 4' with a radius of curvature r15 '.
- the fiber abrasive disc 9 ' has a radius R9' from the axis 7 '.
- the offset area 6 ' has a radius R6' from the axis 7 'at the transition to the main grinding area 8'.
- the main grinding area 8 ' has a radius R8' from the axis 7 '.
- FIG. 5 the use of the roughing-grinding tool according to the invention on manual grinding machines 19 emerges.
- the roughing-grinding tool is mounted on an output shaft 20 of the hand grinder 19, which is inserted through the opening 3 of the grinding tool, so that the axis 7 coincides with the central axis of the output shaft 20.
- the attachment of the grinding tool on the output shaft 20 by means of a clamping nut 21st
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Description
Die Erfindung betrifft ein Schnipp-Schleif-Werkzeug nach dem Oberbegriff des Anspruches 1.The invention relates to a snap-grinding tool according to the preamble of
Schmpp-Schleif-Werkzeuge sind in der Praxis in großer Zahl bekannt. Hierbei sind die Fiber-Schleifscheiben flexibel ausgebildet und lösbar auf dem Tragteller angebracht. Die Befestigung auf dem Tragteller erfolgt durch einen aufschraubbaren Flansch im Kröpfungsbereich der Fiber-Schleifscheibe. Bei Arbeiten, bei denen mittels des Schrupp-Schleif-Werkzeugs gleichmäßige Oberflächenstrukturen an dem zu bearbeitenden Werkstück erzielt werden müssen, ist die Standzeit der Fiber-Schleifscheibe kurz, beispielsweise nur ca. 1 Minute. Nach dieser Zeit zeigt das Schleifkorn der Fiber-Schleifscheibe erste Abnutzungserscheinungen, wodurch die Oberfläche des zu bearbeitenden Werkstücks nicht mehr vollkommen gleichmäßig wird. Die Fiber-Schleifscheibe wird daher bereits nach dieser Zeit ausgewechselt.Schmpp grinding tools are known in practice in large numbers. Here, the fiber grinding wheels are flexible and releasably mounted on the support plate. The mounting on the support plate is done by a screw-on flange in the Kröpfungsbereich the fiber grinding wheel. For work in which uniform surface structures on the workpiece to be machined must be achieved by means of the roughing and grinding tool, the service life of the fiber grinding wheel is short, for example only about 1 minute. After this time, the abrasive grain of the fiber abrasive disc shows its first signs of wear, whereby the surface of the workpiece to be machined is no longer completely uniform. The fiber grinding wheel is therefore already replaced after this time.
Um ein schnelles Auswechseln derartiger Fiber-Schleifscheiben zu ermöglichen, wurde ein Schnellwechselsystem entwickelt, wie es in der
Wenn zum Schruppschleifen - wie in der Praxis üblich - Schleifscheiben mit grobkörnigem Schleifmittel eingesetzt werden, dann besteht die Gefahr, dass die das Schleifmittel tragende Unterlage zerreißt. Dies gilt insbesondere, wenn als Unterlage für das Schleifmittel dienende Scheiben aus wenig festem Material eingesetzt werden.If grinding wheels with coarse abrasive are used for rough grinding - as is customary in practice - then there is a risk that the base carrying the abrasive tears. This is especially true when serving as a base for the abrasive serving discs of little solid material.
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Der Erfindung liegt die Aufgabe zugrunde, ein Schrupp-Schleif-Werkzeug der gattungsgemäßen Art so auszugestalten, dass es bei einfachem und kostengünstigem Aufbau hohe Standzeiten aufweist.The invention has for its object to design a roughing-grinding tool of the generic type so that it has a long service life with simple and inexpensive construction.
Diese Aufgabe wird erfindungsgemäß bei einem Schrupp-Schleif-Werkzeug der gattungsgemäßen Art durch die Merkmale im Kennzeichnungsteil des Anspruchs 1 gelöst. Durch das Aufkleben der Fiber-Schleifscheibe auf den Tragteller hat sich überraschenderweise ergeben, dass ein Ausreißen der Fiber-Schleifscheibe trotz der hohen Belastungen beim Schruppschleifen nicht eintritt. Dies kann damit erklärt werden, dass beim Schrupp-Schleifen auftretende Drehmoment nicht vollständig von den Fasern der Fiber-Scheibe aufgenommen werden muss. Es erfolgt in erheblichem Umfang eine Übertragung auf den Tragteller. Auch bei Drehmomenten-Überlastung und beim Anstoßen der Außenkante der Fiber-Schleifscheibe an ein Werkstück kommt es nicht zum Bruch der Fiber-Schleifscheibe. Es lösen sich also keine kleineren oder größere Segmente von der Fiber-Schleifscheibe, sodass auch Verletzungen beim Benutzer weitestgehend ausgeschlossen sind. Die Gefahr des Ablösens der Schleifscheibe vom Tragteller wird dadurch weiter reduziert, dass der Außen-Schleif-Bereich zur Schleifseite hin konvex zur Rückseite des Schleif-Werkzeugs hin gekrümmt ist. Durch diese Maßnahme kann das Schleif-Werkzeug auch kurzzeitig zum Stirnschleifen eingesetzt werden.This object is achieved in a roughing-grinding tool of the generic type by the features in the characterizing part of
Die Fiber-Scheibe besteht aus Vulkanfiber, einem Material, das seit eineinhalb Jahrhunderten bekannt und auf der Basis von Baumwollfasern hergestellt ist. Überraschenderweise hat sich weiterhin ergeben, dass das Schrupp-Schleif-Werkzeug sowohl hinsichtlich der zerspanten Masse pro Zeiteinheit als auch hinsichtlich der gesamten zerspanbaren Masse konventionellen Schrupp-Schleifscheiben weit überlegen ist. Dies gilt insbesondere, weil Ceramic-Korn als Schleifmittel eingesetzt wird.The fiber disc is made of vulcanized fiber, a material that has been known for a century and a half and made from cotton fibers. Surprisingly, it has also been found that the roughing and grinding tool is far superior to conventional roughing wheels both in terms of machined mass per unit time and in terms of total machinable mass. This is especially true because Ceramic grain is used as an abrasive.
Als besonders vorteilhaft hat es sich erwiesen, dass die Schleifscheibe mit dem Schleifmittel-Belag zur Schleifseite hin leicht konvex gewölbt ist. Da derartige Schrupp-Schleifscheiben, also Schrupp-Schleif-Werkzeuge, an handgeführten Schleifmaschinen eingesetzt werden, wird beim Einsatz eine exakte Winkelposition des Schleif-Werkzeugs gegenüber der zu schleifenden Fläche in der Regel nicht eingehalten. Die leichte Wölbung führt dazu, dass keine hohen lokalen Flächenpressungen zwischen der Schleif-Scheibe und dem zu bearbeitenden Werkstück mit der Folge eines entsprechenden Ausreißens von Schleifkorn auftreten. Dies führt zu einer erheblichen Erhöhung der Standzeit bzw. der Zerspanungsleistung. Die weiteren Unteransprüche geben vorteilhafte Weiterbildungen wieder.To be particularly advantageous, it has been found that the grinding wheel with the abrasive coating is slightly convex towards the grinding side. Since such roughing wheels, ie roughing and grinding tools, are used on hand-held grinding machines, an exact angular position of the grinding tool with respect to the surface to be ground is generally not maintained during use. The slight curvature causes no high local surface pressures between the grinding wheel and the workpiece to be machined, with the result of a corresponding tearing of abrasive grain occur. This leads to a considerable increase in the service life or the cutting performance. The further subclaims give advantageous developments again.
Weitere Merkmale, Vorteile und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung von Ausführungsbeispielen anhand der Zeichnung. Es zeigt
- Fig. 1
- eine erste Ausführungsform eines nicht erfindungsgemäßen Schrupp-Schleif-Werkzeugs in einer Rück-Ansicht gemäß dem Sichtpfeil I in
Fig. 3 , - Fig. 2
- eine Draufsicht auf die Schleifseite des Schrupp-Schleif-Werkzeugs gemäß dem Sichtpfeil II in
Fig. 3 , - Fig. 3
- einen Querschnitt durch das Schrupp-Schleif-Werkzeug gemäß der Schnittlinie III-III in
Fig. 1 , - Fig. 4
- einen Querschnitt durch eine Ausführungsform eines Schnipp-Schleif-Werkzeugs gemäß der Erfindung und
- Fig. 5
- eine Hand-Schleifmaschine mit einem Schrupp-Schleif-Werkzeug nach der Erfindung im Schleifeinsatz.
- Fig. 1
- a first embodiment of a non-inventive roughing-grinding tool in a rear view according to the viewing arrow I in
Fig. 3 . - Fig. 2
- a plan view of the grinding side of the roughing-grinding tool according to the viewing arrow II in
Fig. 3 . - Fig. 3
- a cross section through the roughing-grinding tool according to the section line III-III in
Fig. 1 . - Fig. 4
- a cross-section through an embodiment of a flick-grinding tool according to the invention and
- Fig. 5
- a hand grinder with a roughing-grinding tool according to the invention in the grinding insert.
Das in den
Auf der Schleifseite 4 ist eine Fiber-Schleifscheibe 9 befestigt. Hierbei handelt es sich um ein sogenanntes Schleifmittel auf Unterlage, das aus einer Fiber-Scheibe 10 als Träger bzw. Unterlage und einem harzgebundenen Schleifmittel-Belag 11 besteht. Die Fiber-Scheibe 10 besteht aus Vulkanfiber, wobei es sich um ein gebundenes, verpresstes Material auf der Basis von Baumwollfasern handelt. Der Schleifmittel-Belag 11 wird durch Ceramic-Korn 11.1 gebildet, das aus einem Mikrogranulat durch Sintern hergestellt wird. Die Mikrogranulate brechen einzeln aus dem jeweiligen Korn heraus, so dass dadurch die Standfestigkeit des Ceramic-Korns 11.1 im Vergleich zu üblichen Schleifmitteln erheblich gesteigert wird. Der harzgebundene Schleifmittel-Belag 11 ist in der üblichen Weise mit der Fiber-Scheibe 10 verbunden. Die Fiber-Scheibe 10 der Fiber-Schleifscheibe 9 ist mit der Schleifseite 4 des Tragtellers 1 mittels einer Klebstoff-Schicht 12 verbunden.On the grinding
Der Radius R1 des Tragtellers 1 ist - wie
Der Einsatz des Schleif-Werkzeugs erfolgt in der üblichen Weise unter einem Winkel zur Achse 7.The use of the grinding tool takes place in the usual manner at an angle to the
Soweit bei der erfindungsgemäßen Ausführungsform nach
Wie
Der sich an den Haupt-Schleif-Bereich 8' anschließende Außen-Schleif-Bereich 15' ist radial nach außen gesehen von der Schleifseite 4' hin weg geneigt und zur Schleifseite 4' mit einem Krümmungsradius r15' konvex gekrümmt.The outer grinding area 15 'adjoining the main grinding area 8' is inclined radially outward away from the grinding
Die Krümmungen mit den Krümmungsradien r6', r8' und r15' sind konvex zur Schleifseite 4' ausgebildet; der Grund hierfür liegt darin, dass der Einsatz des Schrupp-Schleif-Werkzeugs in der üblichen Weise unter einem Winkel zur Achse 7' erfolgt. Die Fiber-Scheibe 10' endet - wie
- 15 mm ≤ r2' ≤ 30 mm und bevorzugt 20 mm ≤ r2' ≤ 25 mm
- 15 mm ≤ r6' ≤ 40 mm und bevorzugt 15 mm ≤ r6' ≤ 20 mm
- 190 mm ≤ r8' ≤ 300 mm und bevorzugt 200 mm ≤ r8' ≤ 250 mm
- 17 mm ≤ r15' ≤ 40 mm und bevorzugt 15 mm ≤ r15' ≤ 20 mm
- 15 mm ≤ r2 '≤ 30 mm and preferably 20 mm ≤ r2' ≤ 25 mm
- 15 mm ≤ r6 '≤ 40 mm and preferably 15 mm ≤ r6' ≤ 20 mm
- 190 mm ≤ r8 '≤ 300 mm and preferably 200 mm ≤ r8' ≤ 250 mm
- 17 mm ≤ r15 '≤ 40 mm and preferably 15 mm ≤ r15' ≤ 20 mm
Die Fiber-Schleif-Scheibe 9' weist einen Radius R9' von der Achse 7' auf. Der Kröpfungs-Bereich 6' weist am Übergang zum Haupt-Schleif-Bereich 8' einen Radius R6' von der Achse 7' auf. Der Haupt-Schleif-Bereich 8' weist einen Radius R8' von der Achse 7' auf.The fiber
Für die Radien R6' und R8' in Bezug auf den Radius R9' gilt Folgendes:
- 0,45 R9' ≤ R6' ≤ 0,7 R9'
- 0,75 R9' ≤ R8' < R9'
- 0.45 R9 '≤ R6' ≤ 0.7 R9 '
- 0.75 R9 '≤ R8'<R9'
Aus
Durch die konvexe Wölbung des Haupt-Schleif-Bereichs 8" zur Schleifseite 4' hin wird erreicht, dass beim Flächenschleifen von Werkstücken 22, also beim Haupteinsatzgebiet derartiger Schleif-Werkzeuge, auch bei den unvermeidbaren Pendelbewegungen des Schleif-Werkzeugs eine gleichmäßige Belastung des Schleifmittel-Belages 11' eintritt, also keine extremen Flächenpressungen auftreten. Dies führt bei diesen stets an Hand-Schleifmaschinen eingesetzten Schrupp-Schleif-Werkzeugen zu einem geringeren Verschleiß und damit einer höheren Standzeit bzw. einer höheren Abtrags-Leistung der Schleifscheibe.
Die stärkere Wölbung im Außen-Schleif-Bereich 15' bewirkt, dass bei einem Anstoßen des Außenrandes 13' der Schleifscheibe an einen Gegenstand keine Ablösung der Fiber-Schleifscheibe 9' samt Schleifmittel-Belag 11 vom Tragteller 1' erfolgt.Due to the convex curvature of the main grinding
The stronger curvature in the outer grinding area 15 'causes that upon abutting the outer edge 13' of the grinding wheel to an object no detachment of the
Claims (5)
- Rough grinding tool, consisting- of a support plate (1, 1', 1"), which-- is concentrically configured with respect to a centre longitudinal axis (7, 7') and-- has a centre opening (3, 3') for receiving a drive shaft of a drive machine, and-- consist of a glass fabric impregnated with epoxy resin having a constant thickness h,
and- of a fiber grinding disc (9, 9'), whichcharacterized-- consists of a fiber disc (10, 10'), with a resin-bound grinding means covering (11, 11'),-- has an outer annular grinding region (8, 8') arranged radially with respect to the centre longitudinal axis (7, 7'),-- is supported on the support plate (1, 1') without projecting radially with respect to the axis (7, 7') over the outer edge (13) of the support plate (1, 1'),-- is glued to the support plate (1, 1') by means of an adhesive layer (12, 12'), and-- has a grinding side (4, 4'),
in that ceramic grain (11.1, 11.1') is provided as the grinding means, in that the fiber disc (10, 10') consists of vulcanized fiber,
in that the grinding region has a main grinding region (8') and an outer grinding region (15') which adjoins radially outwardly with respect to the axis (7') and which grinding region (15') is convex toward the grinding side (4') with a radius of curvature r15',
in that with regard to the radius of curvature r15' there applies: 17 mm ≤ r15' ≤ 40 mm, and
in that the main grinding region (8') has an inner radius R6' and an outer radius R8' and the fiber grinding disc (9') has an outer radius R9' wherein there applies:0.45 R9' ≤ R6' ≤ 0.7 R9' and0.75 R9' ≤ R8' < R9'. - Rough grinding tool according to claim 1, characterized in that the grinding region (8', 8") is convex toward the grinding side (4') with a radius of curvature r8'.
- Rough grinding tool according to claim 1 and 2, characterized in that with regard to the radius of curvature r15' in relation to the radius of curvature r8' there applies: r15' < r8'.
- Rough grinding tool according to claim 2, characterized in that with regard to the radius of curvature r8' there applies: 190 mm ≤ r8' ≤ 300 mm and preferably 200 mm ≤ r8' ≤ 250 mm.
- Rough grinding tool according to claim 1, characterized in that with regard to the radius of curvature r15' there applies: 15 mm ≤ r15' ≤ 20 mm.
Rough grinding tool according to claim 11, characterized in that
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200910038583 DE102009038583A1 (en) | 2009-08-22 | 2009-08-22 | Rough grinding tool for use on hand grinding machine, has fiber grinding disk with outer annular grinding region that is arranged radial to centre longitudinal axis, where disk is supported or glued to support plate using adhesive layer |
DE201010029553 DE102010029553A1 (en) | 2010-06-01 | 2010-06-01 | Rough grinding tool for use on hand grinding machine, has fiber grinding disk with outer annular grinding region that is arranged radial to centre longitudinal axis, where disk is supported or glued to support plate using adhesive layer |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2286959A2 EP2286959A2 (en) | 2011-02-23 |
EP2286959A3 EP2286959A3 (en) | 2011-03-16 |
EP2286959B1 true EP2286959B1 (en) | 2014-05-07 |
Family
ID=43216919
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10167695.5A Not-in-force EP2286959B1 (en) | 2009-08-22 | 2010-06-29 | Scrubbing-grinding tool |
Country Status (9)
Country | Link |
---|---|
US (1) | US20110045750A1 (en) |
EP (1) | EP2286959B1 (en) |
CN (1) | CN101992429B (en) |
AU (1) | AU2010212470A1 (en) |
BR (1) | BRPI1003157A2 (en) |
CA (1) | CA2715530A1 (en) |
RU (1) | RU2010132291A (en) |
TW (1) | TW201111108A (en) |
ZA (1) | ZA201005883B (en) |
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ITRM20110173A1 (en) * | 2011-04-06 | 2012-10-07 | Mattia Mauro Di | TOOL. |
KR101862371B1 (en) * | 2011-09-19 | 2018-05-29 | 주식회사 디어포스 | Eco abrasives articles and manufacturing method thereof |
CN202825577U (en) * | 2012-06-11 | 2013-03-27 | 深圳市常兴技术股份有限公司 | Diamond grinding apparatus for grinding organic glass |
JP6529210B2 (en) * | 2013-04-04 | 2019-06-12 | スリーエム イノベイティブ プロパティズ カンパニー | Polishing method using polishing disk and article used therefor |
EP3038795B1 (en) * | 2013-11-11 | 2017-06-28 | Günter Wendt GmbH | Vulcanized fiber grinding tool |
MX2019002076A (en) * | 2016-08-23 | 2019-05-15 | Rueggeberg August Gmbh & Co Kg | Roughing grinding tool. |
US20220080555A1 (en) * | 2020-09-16 | 2022-03-17 | ÜÇER ZIMPARA TASI SAN.ve TIC.LTD.STI. | Bilateral abrasive disc pad |
KR102296729B1 (en) * | 2021-06-03 | 2021-08-31 | 빈인선 | Sanding disc for attaching and detaching electric grinder with high adhesion efficiency |
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DE8814637U1 (en) | 1987-12-16 | 1989-03-02 | Reiling, Karl, 7535 Königsbach-Stein | Abrasive body |
DE9017256U1 (en) | 1990-12-21 | 1991-03-14 | Wendt, Günther, 5227 Windeck | Flap face grinding wheel |
US5273558A (en) * | 1991-08-30 | 1993-12-28 | Minnesota Mining And Manufacturing Company | Abrasive composition and articles incorporating same |
DE4129090A1 (en) * | 1991-09-02 | 1993-03-04 | Rueggeberg August Fa | GRINDING WHEEL |
US5316812A (en) * | 1991-12-20 | 1994-05-31 | Minnesota Mining And Manufacturing Company | Coated abrasive backing |
US5562745A (en) | 1994-03-16 | 1996-10-08 | Minnesota Mining And Manufacturing Company | Abrasive articles, methods of making abrasive articles, and methods of using abrasive articles |
US6280309B1 (en) * | 1995-10-19 | 2001-08-28 | Norton Company | Accessories and attachments for angle grinder |
EP0909612B1 (en) * | 1997-10-16 | 2002-06-19 | August Rüggeberg GmbH & Co. | Grinding disc |
DE10106631A1 (en) * | 2001-02-12 | 2002-08-22 | Rueggeberg August Gmbh & Co | Carrying plate for flap disc and flap disc |
US6530830B2 (en) | 2001-03-19 | 2003-03-11 | 3M Innovative Properties Company | Sanding disc |
US6863596B2 (en) * | 2001-05-25 | 2005-03-08 | 3M Innovative Properties Company | Abrasive article |
US6723142B2 (en) * | 2002-06-05 | 2004-04-20 | Tepco Ltd. | Preformed abrasive articles and method for the manufacture of same |
TWI238753B (en) * | 2002-12-19 | 2005-09-01 | Miyanaga Kk | Diamond disk for grinding |
CA2457249A1 (en) * | 2003-12-09 | 2005-06-09 | Suntek Industries Ltd. | Preparation of coated abrasive disk |
DE102004001546A1 (en) * | 2004-01-10 | 2005-08-04 | August Rüggeberg Gmbh & Co. Kg | Tool |
DE102004032311A1 (en) * | 2004-07-03 | 2006-01-19 | August Rüggeberg Gmbh & Co. Kg | Separating grinding wheel for stationary use |
EP1741515B1 (en) * | 2005-07-05 | 2007-11-07 | August Rüggeberg GmbH & Co. KG | Tool |
DE102006010366B3 (en) * | 2006-03-03 | 2007-10-04 | Lukas-Erzett Vereinigte Schleif- und Fräswerkzeugfabriken GmbH & Co KG | Abrasive blade and grinding wheel containing it |
KR100802512B1 (en) * | 2006-09-21 | 2008-02-12 | 주식회사 썬텍인더스트리 | Abrasive disks and preparation thereof |
DE102008023946B3 (en) * | 2008-05-16 | 2009-04-02 | August Rüggeberg Gmbh & Co. Kg | Rough-grinding wheel |
DE102008026722B3 (en) * | 2008-06-04 | 2009-04-02 | August Rüggeberg Gmbh & Co. Kg | Fan-like grinding wheel for use in angle grinder, has bending sections bending at circumferential edge of edge region such that bending sections form approximate half truncated cone-shape, and external sections fastened to side of plate |
US8430725B2 (en) * | 2008-12-19 | 2013-04-30 | Jovan Pajovic | Abrasive disc construction |
-
2010
- 2010-06-29 EP EP10167695.5A patent/EP2286959B1/en not_active Not-in-force
- 2010-08-02 RU RU2010132291/02A patent/RU2010132291A/en not_active Application Discontinuation
- 2010-08-05 BR BRPI1003157-0A patent/BRPI1003157A2/en not_active IP Right Cessation
- 2010-08-17 CA CA2715530A patent/CA2715530A1/en not_active Abandoned
- 2010-08-17 ZA ZA2010/05883A patent/ZA201005883B/en unknown
- 2010-08-19 CN CN201010259536.7A patent/CN101992429B/en not_active Expired - Fee Related
- 2010-08-19 AU AU2010212470A patent/AU2010212470A1/en not_active Abandoned
- 2010-08-20 TW TW099127976A patent/TW201111108A/en unknown
- 2010-08-23 US US12/861,670 patent/US20110045750A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
EP2286959A3 (en) | 2011-03-16 |
CN101992429B (en) | 2015-04-08 |
US20110045750A1 (en) | 2011-02-24 |
AU2010212470A1 (en) | 2011-03-10 |
EP2286959A2 (en) | 2011-02-23 |
RU2010132291A (en) | 2012-02-10 |
ZA201005883B (en) | 2013-08-28 |
CA2715530A1 (en) | 2011-02-22 |
CN101992429A (en) | 2011-03-30 |
BRPI1003157A2 (en) | 2012-04-10 |
TW201111108A (en) | 2011-04-01 |
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