EP2117776B1 - Eccentric grinder - Google Patents

Eccentric grinder Download PDF

Info

Publication number
EP2117776B1
EP2117776B1 EP07822050A EP07822050A EP2117776B1 EP 2117776 B1 EP2117776 B1 EP 2117776B1 EP 07822050 A EP07822050 A EP 07822050A EP 07822050 A EP07822050 A EP 07822050A EP 2117776 B1 EP2117776 B1 EP 2117776B1
Authority
EP
European Patent Office
Prior art keywords
friction
friction surface
backing pad
eccentric
sanding pad
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.)
Active
Application number
EP07822050A
Other languages
German (de)
French (fr)
Other versions
EP2117776A1 (en
Inventor
Heiko Roehm
Andreas Heber
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2117776A1 publication Critical patent/EP2117776A1/en
Application granted granted Critical
Publication of EP2117776B1 publication Critical patent/EP2117776B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • B24B23/03—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor the tool being driven in a combined movement

Definitions

  • the invention relates to an eccentric grinder according to the preamble of claim 1.
  • an eccentric grinder which has an electric drive motor in a housing, the drive shaft via an eccentric bearing drives a support shaft of a sanding pad on the underside of an abrasive is to be attached.
  • a superimposed circular and rotary working movement of the sanding pad including the abrasive thereon is achieved.
  • the working position of the grinding plate is pressed with the abrasive against the surface of the workpiece to be machined, due to the storage of the support shaft to the drive shaft rotation of the grinding plate about its own axis is only possible to a limited extent.
  • there is the risk that the sanding disc will start to rotate due to the bearing friction with the speed of the drive shaft at idle the eccentric grinder, so when lifting the sanding pad of the workpiece to be machined.
  • a friction brake In order to limit the self-rotation of the sanding plate at idle, a friction brake is provided which has cooperating friction on the sanding pad and on the sanding pad facing bottom of the housing of the eccentric grinder.
  • the friction brake can idle of the eccentric grinder an outer Wälzkranz on the sanding pad on an inner, associated Wälzkranz run on the housing a rolling motion, whereby a self-rotation of the sanding pad is not prevented, however, the speed of the sanding pad against the engine speed on the division of outer and inner ring gear can be reduced , A complete inhibition of self-rotation is not provided in this embodiment.
  • the DE 101 48 339 A1 shows a Exzenterschteifer according to the preamble of claim 1, in the housing, a drive is arranged, the drive shaft via an eccentric bearing drives a support shaft of a sanding pad.
  • the eccentric grinder has a Reibbrems driving comprising an annular Reibbremselement and a support plate, which is part of the grinding plate and on the underside by means of Velcro an intermediate plate is arranged as a support of a sanding pad.
  • the friction brake facing the end face of the support plate has radially from the inside out a sloping course, whereby the self-rotation of the sanding pad inhibited and also a stabilizing effect is achieved so that angular deviations of the sanding pad are compensated by tilting from the drive shaft normal again.
  • connection between the support plate and the intermediate plate takes place by means of a plurality of latching connections, which are arranged on the radially outer edge, with a latching connection portion on the support plate extends radially to the outer edge.
  • the invention has the object of evaluating a generic eccentric grinder in such a way that at the least possible wear of the friction brake, the self-rotation of the sanding pad is prevented in an improved condition of the eccentric grinder.
  • the eccentric grinder according to the invention has a drive in a housing, usually an electric drive, wherein in the context of the invention, a hydraulic or pneumatic drive is considered, drives the drive shaft via an eccentric bearing a support shaft of a sanding pad.
  • an abrasive can be attached, for example, an abrasive paper, which is placed on the surface of a workpiece for machining. Due to the bearing of the sanding disk carrying the support shaft in the drive shaft forcibly transmitted to the sanding disc an eccentric movement.
  • a self-rotation of the sanding pad which is fundamentally made possible by the bearing of the support shaft, is only possible to a limited extent in the grinding operation due to the grinding forces acting on the sanding pad.
  • Reibbrems In order to prevent the idler of the eccentric grinder, so after lifting the grinding disc of the workpiece to be machined, due to the bearing friction high rotation of the grinding disc to the rotational speed of the drive motor, a Reibbrems leverage is provided which prevents the self-rotation of the grinding disc at idle or at least decelerates.
  • This Reibbrems leverage comprises on the one hand a Reibbremselement, which is arranged on the housing of the eccentric grinder, and on the other hand, an associated friction surface on the sanding pad, which is acted upon by the Reibbremselement with a frictional force.
  • the friction surface of the sanding pad has, relative to a horizontal plane perpendicular to the axis of the support shaft, a course sloping from the inside to the outside in the radial direction. This means that the surface facing the housing friction surface on the sanding pad relative to the horizontal plane in the region of the axis of rotation of the sanding pad has the highest elevation, whereas the friction surface falls to the radially outer edge of the sanding pad.
  • This embodiment has the advantage that the side of the sanding disc, which is currently deflected eccentrically, is acted upon by the friction element to a greater extent than the diametrically opposite side of the sanding pad, since due to the gradient of the friction surface towards the center of the sanding pad, the friction brake element on the deflected side has a smaller distance from the Reibbremselement and therefore more or more comes into frictional contact than on the opposite side.
  • the self-rotation of the grinding disc is effectively inhibited, since the friction element exerts a frictional force on the friction surface on the eccentrically deflected side.
  • a stabilizing effect is achieved, which is due to the fact that the friction element pushes the sanding plate on the eccentrically deflected side slightly downwards, whereby the sanding pad is returned to its normal working position with parallel axis of the support shaft to the drive shaft.
  • a stabilizing friction brake element on the other hand, there is the danger that the sanding pad tilts due to the eccentric drive and the bearing clearance of the drive shaft normal, whereby the bearing friction is amplified and a rotation of the self-rotation of the sanding pad is to be feared. This effect can be avoided by means of the embodiment according to the invention or at least greatly reduced.
  • the friction surface on the sanding pad can, in principle, have any desired cross-sectional geometry, as long as it is ensured that the friction surface falls off towards the outer edge of the sanding pad and has a cone angle of at least 5 °, which can be realized in a structurally particularly simple manner.
  • the friction brake element is expediently designed as a friction ring, which advantageously has a constant cross section in the circumferential direction.
  • This compensation section which is formed for example in cross-section V-shaped, allows in the direction of the friction brake force to be transmitted in Reibbremselement an elastically resilient behavior, which also Fluctuations of the sanding plate during the circulation can be compensated.
  • the friction surface is designed as a separately formed contact component, which is connected to the sanding pad.
  • the design as a separate component has the advantage that the friction surface may consist of a different material than the sanding pad. Suitable materials for the friction surface are various plastics, for example polyamide, polypropylene, polycarbonate or PMMA. Alternatively, the friction surface may also be made of metal, in particular of aluminum or magnesium, or of a foam material.
  • the in Fig. 1 illustrated eccentric grinder 1 has in a housing 2 to an electric drive motor 3, which is supplied via a power supply 4 with electric current.
  • an eccentric arranged bearing On a drive shaft 5 of the drive motor 3 is an eccentric arranged bearing a support shaft 7 mounted, which carries a sanding pad 8, on the underside 9, an abrasive for machining the surface of a workpiece is to be attached.
  • the bearing 6 is formed, for example, as a ball bearing and allows a self-rotation of the support shaft 7 about the rotation axis 11, which also represents the rotation or rotation axis of the sanding pad 8. This axis of rotation 11 is located with eccentric distance e parallel to the axis of rotation 10 of the drive shaft fifth
  • the dust fan 13 is fixedly connected to the drive shaft 5 of the drive motor and has an eccentrically shaped, cup-shaped interior, in which the bearing 6 is accommodated for supporting the support shaft 7.
  • the transported through the holes 12 grinding dust is passed through a housing-side exhaust nozzle 14 in a dust collector, not shown.
  • This friction brake device 15 comprises a friction surface 16 on the sanding pad on the top side associated with the housing 2 and a friction brake element 17, which is firmly connected to the housing 2 and comes into frictional contact with the friction surface 16.
  • the friction brake element 17 is expediently designed as a friction ring and consists of rubber or an elastomer material, for example TPE, EPDM or NBR. Seen in cross-section, the friction ring 17 has an approximately V-shaped compensation section 18, which allows in the direction of Reibkraftbeetzschung an elastic elongation and contraction of the friction ring.
  • the friction surface 16 on the upper side of the grinding plate 8 has radially seen from the inside to the outside, so seen from the axis of rotation 11 in the direction of the radially outer edge 19 of the grinding disc a sloping cross-sectional profile.
  • This sloping course relates to a horizontal plane 20, which is perpendicular to the axis of rotation 11 of the sanding pad 8.
  • the grinding disc 8 When the eccentric grinder is idling, the grinding disc 8 can be tilted slightly out of its position with parallel axes of rotation due to bearing play and the eccentric drive, so that the axis of rotation 11 of the grinding disc is slightly inclined with respect to the axis of rotation 10 of the drive shaft 5.
  • the currently eccentrically deflected side of the sanding pad is raised by a small amount, whereby the friction surface comes into contact with the Reibbremselement 17 at this point and learns from this a frictional force that slows down the self-rotation of the sanding pad 8.
  • the friction brake element 17 presses the slightly raised sanding pad back down into a position with a parallel axis of rotation to the axis of rotation 10 of the drive shaft.
  • the individual presentation after Fig. 2 is the cone angle to take ⁇ , under which the cone-shaped portion of the friction surface 16 relative to the horizontal plane or a plane parallel thereto is inclined.
  • the conical portion of the friction surface 16 is limited to a relatively radially far outside region. It is essential that the friction surface over its entire radial Extending seen starting from the axis of rotation 11 in the radial direction outwards has a sloping course.
  • the friction surface 16 is part of a contact member 21 which is formed separately from the sanding pad 8, but connected to this and the housing 2 facing the top of the sanding pad forms. This opens up the possibility of producing the friction surface 16 from a different material than the sanding pad 8.
  • the friction surface 16 does not extend to the outer edge 19 of the grinding plate 8, but seen in the radial direction is set back relative to the outer edge 19. This is basically sufficient to ensure that the friction brake element acts on the sanding pad in the eccentrically deflected position with a frictional force.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Braking Arrangements (AREA)

Abstract

The grinder (1) has a drive motor (3) arranged in a housing (2). A drive shaft (5) of the drive motor propels a supporting shaft (7) of a grinding disk (8) via an eccentric bearing (6). A friction brake device (15) has a friction brake unit (17) arranged at the housing and a friction surface arranged at the grinding disk, which is subjected with a frictional force by the friction brake unit. The friction surface stands perpendicularly to a rotation axis (11) of the grinding disk that exhibits a course, which is sloping outwards from an inner side in a radial direction.

Description

Die Erfindung bezieht sich auf einen Exzenterschleifer nach dem Oberbegriff des Anspruches 1.The invention relates to an eccentric grinder according to the preamble of claim 1.

Stand der TechnikState of the art

In der DE 39 06 549 C2 wird ein Exzenterschleifer beschrieben, der in einem Gehäuse einen elektrischen Antriebsmotor aufweist, dessen Antriebswelle über eine exzentrische Lagerung eine Tragwelle eines Schleiftellers antreibt, an dessen Unterseite ein Schleifmittel zu befestigen ist. Über die exzentrische Lagerung der Tragwelle wird eine überlagerte kreisförmige und rotatorische Arbeitsbewegung des Schleiftellers einschließlich des daran befindlichen Schleifmittels erreicht. In der Arbeitsstellung wird der Schleifteller mit dem Schleifmittel gegen die Oberfläche des zu bearbeitenden Werkstückes gedrückt, wobei aufgrund der Lagerung der Tragwelle an der Antriebswelle eine Rotation des Schleiftellers um die eigene Achse nur bedingt möglich ist. Dagegen besteht im Leerlauf des Exzenterschleifers, also beim Abheben des Schleiftellers von dem zu bearbeitenden Werkstück, die Gefahr, dass der Schleifteller aufgrund der Lagerreibung mit der Drehzahl der Antriebswelle zu rotieren beginnt.In the DE 39 06 549 C2 an eccentric grinder is described, which has an electric drive motor in a housing, the drive shaft via an eccentric bearing drives a support shaft of a sanding pad on the underside of an abrasive is to be attached. About the eccentric mounting of the support shaft, a superimposed circular and rotary working movement of the sanding pad including the abrasive thereon is achieved. In the working position of the grinding plate is pressed with the abrasive against the surface of the workpiece to be machined, due to the storage of the support shaft to the drive shaft rotation of the grinding plate about its own axis is only possible to a limited extent. In contrast, there is the risk that the sanding disc will start to rotate due to the bearing friction with the speed of the drive shaft at idle the eccentric grinder, so when lifting the sanding pad of the workpiece to be machined.

Um die Eigenrotation des Schleiftellers im Leerlauf zu begrenzen, ist eine Reibungsbremse vorgesehen, die zusammenwirkende Reibelemente am Schleifteller und an der dem Schleifteller zugewandten Unterseite des Gehäuses des Exzenterschleifers aufweist. Bei der Reibbremse kann im Leerlauf des Exzenterschleifers ein außen liegender Wälzkranz am Schleifteller an einem innen liegenden, zugeordneten Wälzkranz am Gehäuse eine Abwälzbewegung ausführen, wodurch zwar eine Eigenrotation des Schleiftellers nicht verhindert wird, jedoch die Drehzahl des Schleiftellers gegenüber der Motordrehzahl über die Teilung von Außen- und Innenwälzkranz reduziert werden kann. Ein vollständiges Unterbinden der Eigenrotation ist aber bei dieser Ausführung nicht vorgesehen.In order to limit the self-rotation of the sanding plate at idle, a friction brake is provided which has cooperating friction on the sanding pad and on the sanding pad facing bottom of the housing of the eccentric grinder. When the friction brake can idle of the eccentric grinder an outer Wälzkranz on the sanding pad on an inner, associated Wälzkranz run on the housing a rolling motion, whereby a self-rotation of the sanding pad is not prevented, however, the speed of the sanding pad against the engine speed on the division of outer and inner ring gear can be reduced , A complete inhibition of self-rotation is not provided in this embodiment.

Die DE 101 48 339 A1 zeigt einen Exzenterschteifer gemäß Oberbegriff von Anspruch 1, in dessen Gehäuse ein Antrieb angeordnet ist, dessen Antriebswelle über eine exzentrische Lagerung eine Tragwelle eines Schleiftellers antreibt. Der Exzenterschleifer weist eine Reibbremseinrichtung auf, die ein ringförmiges Reibbremselement und eine Stützplatte umfasst, welche Teil des Schleiftellers ist und an deren Unterseite mittels Klettverschlusses eine Zwischenplatte als Träger eines Schleifkissens angeordnet ist. Die dem Reibbremselement zugewandte Stirnfläche der Stützplatte weist radial von innen nach außen einen abfallenden Verlauf auf, wodurch die Eigenrotation des Schleiftellers gehemmt und außerdem ein stabilisierender Effekt erreicht wird, so dass Winkelabweichungen des Schleiftellers durch ein Kippen aus der Antriebswellen-Normalen wieder ausgeglichen werden.The DE 101 48 339 A1 shows a Exzenterschteifer according to the preamble of claim 1, in the housing, a drive is arranged, the drive shaft via an eccentric bearing drives a support shaft of a sanding pad. The eccentric grinder has a Reibbremseinrichtung comprising an annular Reibbremselement and a support plate, which is part of the grinding plate and on the underside by means of Velcro an intermediate plate is arranged as a support of a sanding pad. The friction brake facing the end face of the support plate has radially from the inside out a sloping course, whereby the self-rotation of the sanding pad inhibited and also a stabilizing effect is achieved so that angular deviations of the sanding pad are compensated by tilting from the drive shaft normal again.

Die Verbindung zwischen der Stützplatte und der Zwischenplatte erfolgt mittels mehrerer Überrastverbindungen, die am radial außen liegenden Rand angeordnet sind, wobei sich ein Rastverbindungsabschnitt an der Stützplatte radial bis zum äußeren Rand erstreckt. Es besteht dadurch die Gefahr, dass bei der Werkstückbearbeitung die Stützplatte in Kontakt mit einem Hindernis gelangt.The connection between the support plate and the intermediate plate takes place by means of a plurality of latching connections, which are arranged on the radially outer edge, with a latching connection portion on the support plate extends radially to the outer edge. There is the risk that during workpiece machining, the support plate comes into contact with an obstacle.

Offenbarung der ErfindungDisclosure of the invention

Der Erfindung liegt die Aufgabe zugrunde, einen gattungsgemäßen Exzenterschleifer in der Weise werterzubilden, dass bei möglichst geringem Verschleiß der Reibbremse die Eigenrotation des Schleiftellers im Leerlauf des Exzenterschleifers in verbesserter Form unterbunden wird.The invention has the object of evaluating a generic eccentric grinder in such a way that at the least possible wear of the friction brake, the self-rotation of the sanding pad is prevented in an improved condition of the eccentric grinder.

Diese Aufgabe wird erfindungsgemäß mit den Merkmalen des Anspruches 1 gelöst. Die Unteransprüche geben zweckmäßige Weiterbildungen an.This object is achieved with the features of claim 1. The dependent claims indicate expedient developments.

Der erfindungsgemäße Exzenterschleifer weist in einem Gehäuse einen Antrieb auf, in der Regel einen elektrischen Antrieb, wobei im Rahmen der Erfindung auch ein hydraulischer oder pneumatischer Antrieb in Betracht kommt, dessen Antriebswelle über eine exzentrische Lagerung eine Tragwelle eines Schleiftellers antreibt. An der Unterseite des Schleiftellers kann ein Schleifmittel befestigt werden, beispielsweise ein Schleifpapier, das zur Bearbeitung auf die Oberfläche eines Werkstückes aufgesetzt wird. Aufgrund der Lagerung der den Schleifteller tragenden Tragwelle in der Antriebswelle wird auf den Schleifteller zwangsweise eine Exzenterbewegung übertragen. Eine Eigenrotation des Schleiftellers, die von dem Lager der Tragwelle grundsätzlich ermöglicht wird, ist im Schleifbetrieb aber aufgrund der auf den Schleifteller wirkenden Schleifkräfte nur bedingt möglich.The eccentric grinder according to the invention has a drive in a housing, usually an electric drive, wherein in the context of the invention, a hydraulic or pneumatic drive is considered, drives the drive shaft via an eccentric bearing a support shaft of a sanding pad. On the underside of the sanding pad, an abrasive can be attached, for example, an abrasive paper, which is placed on the surface of a workpiece for machining. Due to the bearing of the sanding disk carrying the support shaft in the drive shaft forcibly transmitted to the sanding disc an eccentric movement. A self-rotation of the sanding pad, which is fundamentally made possible by the bearing of the support shaft, is only possible to a limited extent in the grinding operation due to the grinding forces acting on the sanding pad.

Um im Leerlauf des Exzenterschleifers, also nach einem Abheben des Schleiftellers von dem zu bearbeitenden Werkstück, aufgrund der Lagerreibung ein Hochdrehen des Schleiftellers auf die Drehzahl des Antriebsmotors zu verhindern, ist eine Reibbremseinrichtung vorgesehen, welche die Eigenrotation des Schleiftellers im Leerlauf verhindert oder zumindest abbremst. Diese Reibbremseinrichtung umfasst zum einen ein Reibbremselement, welches an dem Gehäuse des Exzenterschleifers angeordnet ist, und zum andern eine zugeordnete Reibfläche am Schleifteller, welche von dem Reibbremselement mit einer Reibkraft beaufschlagt wird. Die Reibfläche des Schleiftellers weist gegenüber einer senkrecht zur Achse der Tragwelle stehenden Horizontalebene einen in Radialrichtung von innen nach außen abfallenden Verlauf auf. Dies bedeutet, dass die dem Gehäuse zugewandte Reibfläche am Schleifteller bezogen auf die Horizontalebene im Bereich der Rotationsachse des Schleiftellers die höchste Erhebung aufweist, wohingegen zum radial außen liegenden Rand des Schleiftellers die Reibfläche abfällt.In order to prevent the idler of the eccentric grinder, so after lifting the grinding disc of the workpiece to be machined, due to the bearing friction high rotation of the grinding disc to the rotational speed of the drive motor, a Reibbremseinrichtung is provided which prevents the self-rotation of the grinding disc at idle or at least decelerates. This Reibbremseinrichtung comprises on the one hand a Reibbremselement, which is arranged on the housing of the eccentric grinder, and on the other hand, an associated friction surface on the sanding pad, which is acted upon by the Reibbremselement with a frictional force. The friction surface of the sanding pad has, relative to a horizontal plane perpendicular to the axis of the support shaft, a course sloping from the inside to the outside in the radial direction. This means that the surface facing the housing friction surface on the sanding pad relative to the horizontal plane in the region of the axis of rotation of the sanding pad has the highest elevation, whereas the friction surface falls to the radially outer edge of the sanding pad.

Diese Ausführung hat den Vorteil, dass diejenige Seite des Schleiftellers, die aktuell exzentrisch ausgelenkt wird, von dem Reibungselement in stärkerem Maße beaufschlagt wird als die diametral gegenüberliegende Seite des Schleiftellers, da aufgrund des zur Mitte des Schleiftellers hin ansteigenden Verlaufs der Reibfläche das Reibbremselement auf der ausgelenkten Seite einen geringeren Abstand zum Reibbremselement aufweist und daher eher bzw. stärker in Reibkontakt gelangt als auf der gegenüberliegenden Seite. Hierdurch wird zum einen die Eigenrotation des Schleiftellers wirksam gehemmt, da das Reibelement auf der exzentrisch ausgelenkten Seite eine Reibkraft auf die Reibfläche ausübt. Zum andern wird auch ein stabilisierender Effekt erreicht, der dadurch zustande kommt, dass das Reibelement den Schleifteller an der exzentrisch ausgelenkten Seite geringfügig nach unten drückt, wodurch der Schleifteller wieder in seine normale Arbeitsposition gebracht wird mit paralleler Achse der Tragwelle zur Antriebswelle. Ohne stabilisierendes Reibbremselement besteht dagegen die Gefahr, dass der Schleifteller aufgrund des exzentrischen Antriebes und des Lagerspiels aus der Antriebswellen-Normalen kippt, wodurch die Lagerreibung verstärkt wird und ein Hochdrehen der Eigenrotation des Schleiftellers zu befürchten ist. Dieser Effekt kann mithilfe der erfindungsgemäßen Ausführung vermieden oder zumindest stark reduziert werden.This embodiment has the advantage that the side of the sanding disc, which is currently deflected eccentrically, is acted upon by the friction element to a greater extent than the diametrically opposite side of the sanding pad, since due to the gradient of the friction surface towards the center of the sanding pad, the friction brake element on the deflected side has a smaller distance from the Reibbremselement and therefore more or more comes into frictional contact than on the opposite side. As a result, on the one hand, the self-rotation of the grinding disc is effectively inhibited, since the friction element exerts a frictional force on the friction surface on the eccentrically deflected side. On the other hand, a stabilizing effect is achieved, which is due to the fact that the friction element pushes the sanding plate on the eccentrically deflected side slightly downwards, whereby the sanding pad is returned to its normal working position with parallel axis of the support shaft to the drive shaft. Without a stabilizing friction brake element, on the other hand, there is the danger that the sanding pad tilts due to the eccentric drive and the bearing clearance of the drive shaft normal, whereby the bearing friction is amplified and a rotation of the self-rotation of the sanding pad is to be feared. This effect can be avoided by means of the embodiment according to the invention or at least greatly reduced.

Die Reibfläche am Schleifteller kann im Prinzip eine beliebige Querschnittsgeometrie aufweisen, solange gewährleistet ist, dass die Reibfläche zum Außenrand des Schleiftellers hin abfällt und einen Konuswinkel von mindestens 5° aufweist, was sich konstruktiv besonders einfach realisieren lässt.The friction surface on the sanding pad can, in principle, have any desired cross-sectional geometry, as long as it is ensured that the friction surface falls off towards the outer edge of the sanding pad and has a cone angle of at least 5 °, which can be realized in a structurally particularly simple manner.

Das Reibbremselement ist zweckmäßigerweise als Reibring ausgebildet, welches vorteilhafterweise in Umfangsrichtung einen gleich bleibenden Querschnitt aufweist. Um ein nachgiebiges Verhalten des Reibbremselementes zu unterstützen und verbessern, kann es zweckmäßig sein, in den Querschnitt des Reibbremselementes einen in der Länge dehnbaren Ausgleichsabschnitt vorzusehen. Dieser Ausgleichsabschnitt, der beispielsweise im Querschnitt V-förmig ausgebildet ist, erlaubt in Richtung der zu übertragenden Reibbremskraft im Reibbremselement ein elastisch federndes Verhalten, wodurch auch Schwankungen des Schleiftellers während des Umlaufs ausgeglichen werden können.The friction brake element is expediently designed as a friction ring, which advantageously has a constant cross section in the circumferential direction. In order to support and improve a compliant behavior of the friction brake element, it may be expedient to provide in the cross section of the Reibbremselementes a stretchable in length compensating section. This compensation section, which is formed for example in cross-section V-shaped, allows in the direction of the friction brake force to be transmitted in Reibbremselement an elastically resilient behavior, which also Fluctuations of the sanding plate during the circulation can be compensated.

Die Reibfläche ist als separat ausgebildetes Kontaktbauteil ausgeführt, welches mit dem Schleifteller verbunden ist. Die Ausführung als separates Bauteil hat den Vorteil, dass die Reibfläche aus einem anderen Material bestehen kann als der Schleifteller. Als Materialien für die Reibfläche kommen diverse Kunststoffe in Betracht, beispielsweise Polyamid, Polypropylen, Polycarbonat oder PMMA. Alternativ hierzu kann die Reibfläche auch aus Metall bestehen, insbesondere aus Aluminium oder Magnesium, oder aus einem Schaumwerkstoff.The friction surface is designed as a separately formed contact component, which is connected to the sanding pad. The design as a separate component has the advantage that the friction surface may consist of a different material than the sanding pad. Suitable materials for the friction surface are various plastics, for example polyamide, polypropylene, polycarbonate or PMMA. Alternatively, the friction surface may also be made of metal, in particular of aluminum or magnesium, or of a foam material.

Weitere Vorteile und zweckmäßige Ausführungen sind den weiteren Ansprüchen, der Figurenbeschreibung und den Zeichnungen zu entnehmen. Es zeigen:

Fig. 1
einen Schnitt durch einen Exzenterschleifer, dessen Schleifteller exzentrisch angetrieben ist, wobei die dem Gehäuse des Exzenterschleifers zugewandte Seite des Schleiftellers eine Reibfläche aufweist, an der ein Reibbremselement anliegt, und die Reibfläche einen zum Rand hin konisch abfallenden Verlauf aufweist,
Fig. 2
der Schleifteller in Einzeldarstellung,
Fig. 3
der Schleifteller in Draufsicht.
Further advantages and expedient embodiments can be taken from the further claims, the description of the figures and the drawings. Show it:
Fig. 1
a section through an eccentric grinder, the grinding disc is driven eccentrically, wherein the housing of the eccentric grinder facing side of the sanding pad has a friction surface against which a Reibbremselement, and the friction surface has a tapering towards the edge course,
Fig. 2
the sanding plate in detail,
Fig. 3
the sanding pad in top view.

In den Figuren sind gleiche Bauteile mit gleichen Bezugszeichen versehen.In the figures, the same components are provided with the same reference numerals.

Der in Fig. 1 dargestellte Exzenterschleifer 1 weist in einem Gehäuse 2 einen elektrischen Antriebsmotor 3 auf, der über eine Stromzufuhr 4 mit elektrischem Strom versorgt wird. An einer Antriebswelle 5 des Antriebsmotors 3 ist über ein exzentrisch angeordnetes Lager eine Tragwelle 7 gelagert, die einen Schleifteller 8 trägt, an dessen Unterseite 9 ein Schleifmittel zur Bearbeitung der Oberfläche eines Werkstückes zu befestigen ist. Das Lager 6 ist beispielsweise als Kugellager ausgebildet und ermöglicht eine Eigendrehung der Tragwelle 7 um die Drehachse 11, die zugleich die Rotations- bzw. Drehachse des Schleiftellers 8 darstellt. Diese Drehachse 11 liegt mit Exzenterabstand e parallel zur Drehachse 10 der Antriebswelle 5.The in Fig. 1 illustrated eccentric grinder 1 has in a housing 2 to an electric drive motor 3, which is supplied via a power supply 4 with electric current. On a drive shaft 5 of the drive motor 3 is an eccentric arranged bearing a support shaft 7 mounted, which carries a sanding pad 8, on the underside 9, an abrasive for machining the surface of a workpiece is to be attached. The bearing 6 is formed, for example, as a ball bearing and allows a self-rotation of the support shaft 7 about the rotation axis 11, which also represents the rotation or rotation axis of the sanding pad 8. This axis of rotation 11 is located with eccentric distance e parallel to the axis of rotation 10 of the drive shaft fifth

In den Schleifteller 8 sind über den Umfang verteilt Bohrungen 12 eingebracht, über die bei der Bearbeitung des Werkstückes anfallender Schleifstaub mithilfe eines Staub- bzw. Motorlüfters 13 in das Gehäuse eingesaugt wird, wobei der Staublüfter 13 fest mit der Antriebswelle 5 des Antriebsmotors verbunden ist und einen exzentrisch gestalteten, topfförmigen Innenraum aufweist, in welchem das Lager 6 zur Lagerung der Tragwelle 7 aufgenommen ist. Der durch die Bohrungen 12 transportierte Schleifstaub wird über einen gehäuseseitigen Ausblasstutzen 14 in einen nicht dargestellten Staubfangbehälter geleitet.In the sanding plate 8 holes 12 are distributed over the circumference, is sucked on the resulting during processing of the workpiece grinding dust using a dust or motor fan 13 in the housing, the dust fan 13 is fixedly connected to the drive shaft 5 of the drive motor and has an eccentrically shaped, cup-shaped interior, in which the bearing 6 is accommodated for supporting the support shaft 7. The transported through the holes 12 grinding dust is passed through a housing-side exhaust nozzle 14 in a dust collector, not shown.

Um im Leerlauf, bei abgehobenem Schleifteller 8 von dem zu bearbeitenden Werkstück, eine Eigenrotation des Schleiftellers um die Drehachse 11 zu verhindern, welche durch Lagerreibung im Lager 6 zustande kommt, ist eine Reibbremseinrichtung 15 zwischen dem Gehäuse 2 und dem Schleifteller 8 vorgesehen, die die Eigenrotation des Schleiftellers verhindert oder zumindest abbremst. Diese Reibbremseinrichtung 15 umfasst eine Reibfläche 16 am Schleifteller auf der dem Gehäuse 2 zugeordneten Oberseite sowie ein Reibbremselement 17, das fest mit dem Gehäuse 2 verbunden ist und in Reibkontakt mit der Reibfläche 16 tritt. Das Reibbremselement 17 ist zweckmäßigerweise als Reibring ausgeführt und besteht aus Gummi bzw. einem Elastomerwerkstoff, beispielsweise TPE, EPDM oder NBR. Im Querschnitt gesehen weist der Reibring 17 einen etwa V-förmigen Ausgleichsabschnitt 18 auf, der in Richtung der Reibkraftbeaufschlagung eine elastische Längendehnung und -kontraktion des Reibringes ermöglicht.In order to prevent self-rotation of the grinding plate about the axis of rotation 11 at idle, with lifted grinding disc 8 of the workpiece to be machined, which comes about by bearing friction in the bearing 6, a Reibbremseinrichtung 15 is provided between the housing 2 and the sanding pad 8, the Self-rotation of the grinding disc prevents or at least slows down. This friction brake device 15 comprises a friction surface 16 on the sanding pad on the top side associated with the housing 2 and a friction brake element 17, which is firmly connected to the housing 2 and comes into frictional contact with the friction surface 16. The friction brake element 17 is expediently designed as a friction ring and consists of rubber or an elastomer material, for example TPE, EPDM or NBR. Seen in cross-section, the friction ring 17 has an approximately V-shaped compensation section 18, which allows in the direction of Reibkraftbeaufschlagung an elastic elongation and contraction of the friction ring.

Die Reibfläche 16 auf der Oberseite des Schleiftellers 8 weist radial von innen nach außen gesehen, also von der Drehachse 11 in Richtung des radial außen liegenden Randes 19 des Schleiftellers gesehen einen abfallenden Querschnittsverlauf auf. Dieser abfallende Verlauf bezieht sich auf eine Horizontalebene 20, die senkrecht zur Drehachse 11 des Schleiftellers 8 steht.The friction surface 16 on the upper side of the grinding plate 8 has radially seen from the inside to the outside, so seen from the axis of rotation 11 in the direction of the radially outer edge 19 of the grinding disc a sloping cross-sectional profile. This sloping course relates to a horizontal plane 20, which is perpendicular to the axis of rotation 11 of the sanding pad 8.

Im Leerlauf des Exzenterschleifers kann, bedingt durch Lagerspiel und den exzentrischen Antrieb, der Schleifteller 8 geringfügig aus seiner Position mit parallelen Drehachsen gekippt werden, so dass die Drehachse 11 des Schleiftellers geringfügig gegenüber der Drehachse 10 der Antriebswelle 5 geneigt ist. Hierbei wird die aktuell exzentrisch ausgelenkte Seite des Schleiftellers um ein geringes Maß angehoben, wodurch die Reibfläche an dieser Stelle in Kontakt mit dem Reibbremselement 17 gelangt und von diesem eine Reibkraft erfährt, die die Eigenrotation des Schleiftellers 8 abbremst. Außerdem drückt das Reibbremselement 17 den leicht angehobenen Schleifteller wieder nach unten in eine Position mit paralleler Drehachse zur Drehachse 10 der Antriebswelle.When the eccentric grinder is idling, the grinding disc 8 can be tilted slightly out of its position with parallel axes of rotation due to bearing play and the eccentric drive, so that the axis of rotation 11 of the grinding disc is slightly inclined with respect to the axis of rotation 10 of the drive shaft 5. Here, the currently eccentrically deflected side of the sanding pad is raised by a small amount, whereby the friction surface comes into contact with the Reibbremselement 17 at this point and learns from this a frictional force that slows down the self-rotation of the sanding pad 8. In addition, the friction brake element 17 presses the slightly raised sanding pad back down into a position with a parallel axis of rotation to the axis of rotation 10 of the drive shaft.

Aufgrund des radial von außen nach innen ansteigenden Querschnittsverlaufs der Reibungsfläche 16 gelangt die aktuell exzentrisch ausgelenkte Seite in stärkeren Reibkontakt mit dem Reibbremselement 17 als die diametral gegenüberliegende Seite. Dadurch erfährt der Schleifteller an der exzentrisch ausgelenkten Seite eine höhere Bremskraft als diametral gegenüberliegend.Due to the radially increasing from outside to inside cross-sectional profile of the friction surface 16 reaches the currently eccentrically deflected side in stronger frictional contact with the friction brake element 17 as the diametrically opposite side. As a result, the sanding plate on the eccentrically deflected side experiences a higher braking force than diametrically opposite one another.

Der Einzeldarstellung nach Fig. 2 ist der Konuswinkel α zu entnehmen, unter dem der konusförmige Abschnitt der Reibfläche 16 gegenüber der Horizontalebene bzw. einer hierzu parallelen Ebene geneigt ist. Im Ausführungsbeispiel nach Fig. 2 beschränkt sich der konusförmige Abschnitt der Reibfläche 16 auf einen verhältnismäßig radial weit außen liegenden Bereich. Wesentlich dabei ist, dass die Reibfläche über ihre gesamte radiale Erstreckung gesehen ausgehend von der Drehachse 11 in Radialrichtung nach außen einen abfallenden Verlauf aufweist.The individual presentation after Fig. 2 is the cone angle to take α, under which the cone-shaped portion of the friction surface 16 relative to the horizontal plane or a plane parallel thereto is inclined. In the embodiment according to Fig. 2 the conical portion of the friction surface 16 is limited to a relatively radially far outside region. It is essential that the friction surface over its entire radial Extending seen starting from the axis of rotation 11 in the radial direction outwards has a sloping course.

Wie Fig. 2 weiter zu entnehmen, ist die Reibfläche 16 Teil eines Kontaktbauteiles 21, das separat von dem Schleifteller 8 ausgebildet, jedoch mit diesem verbunden ist und die dem Gehäuse 2 zugewandte Oberseite des Schleiftellers bildet. Dies eröffnet die Möglichkeit, die Reibfläche 16 aus einem anderen Material zu fertigen als den Schleifteller 8.As Fig. 2 can be further seen, the friction surface 16 is part of a contact member 21 which is formed separately from the sanding pad 8, but connected to this and the housing 2 facing the top of the sanding pad forms. This opens up the possibility of producing the friction surface 16 from a different material than the sanding pad 8.

Wie Fig. 2 und Fig. 3 darüber hinaus zu entnehmen, ist es vorteilhaft, dass die Reibfläche 16 sich nicht bis zum äußeren Rand 19 des Schleiftellers 8 erstreckt, sondern in Radialrichtung gesehen gegenüber dem äußeren Rand 19 zurückversetzt ist. Dies reicht grundsätzlich aus, um zu gewährleisten, dass das Reibbremselement den Schleifteller in der exzentrisch ausgelenkten Lage mit einer Reibkraft beaufschlagt.As Fig. 2 and Fig. 3 In addition, it is advantageous that the friction surface 16 does not extend to the outer edge 19 of the grinding plate 8, but seen in the radial direction is set back relative to the outer edge 19. This is basically sufficient to ensure that the friction brake element acts on the sanding pad in the eccentrically deflected position with a frictional force.

Claims (6)

  1. Eccentric sander, comprising a drive (3) which is arranged in a housing (2) and the drive shaft (5) of which drives a supporting shaft (7) of a backing pad (8) via an eccentric bearing arrangement (6), wherein a friction braking device (15) is provided which comprises a friction brakingelement (17) arranged on the housing (2) andafriction surface (16) on the backing pad (8), which friction surface (16) is to be acted upon with a frictional force by the friction braking element (17), wherein the friction surface (16) on the backing pad (8) slopes downwards in the radial direction from inside to outside relative to a horizontal plane (20) which is perpendicular to the rotation axis (11) of the backing pad (8), wherein the friction braking element (17) is embodied as a friction ring, wherein the friction surface (16) is arranged on a contact component (21) which is designed to be separate from the backing pad (8) and which is connected to the backing pad (8), wherein the contact component (21) is produced from a material different from that of the backing pad (8) and wherein the friction surface (16) is set back from the outer margin (19) of the backing pad (8) in the radial direction, wherein the friction surface (16) is of conical design, characterized in that the contact area of the friction surface (16) has a cone angle (α) of at least 5° relative to the horizontal.
  2. Eccentric sander according to Claim 1, characterized in that the friction braking element (17) is of elastically flexible design.
  3. Eccentric sander according to either of Claims 1 and 2, characterized in that the friction braking element (17), in the direction in which the frictional force is applied, has a compensating section (18) which can be extended or compressed in length.
  4. Eccentric sander according to one of Claims 1 to 3, characterized in that the friction surface (16) consists of plastic, for example polyamide (PA), polypropylene (PP), polycarbonate (PC) or polymethyl methacrylate (PMMA).
  5. Eccentric sander according to one of Claims 1 to 3, characterized in that the friction surface (16) consists of metal, in particular aluminium or magnesium.
  6. Eccentric sander according to one of Claims 1 to 3, characterized in that the friction surface (16) consists of a foamed material.
EP07822050A 2006-12-27 2007-10-30 Eccentric grinder Active EP2117776B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006061634A DE102006061634A1 (en) 2006-12-27 2006-12-27 Eccentric grinder, has friction brake device with friction surface that stands perpendicularly to rotation axis of grinding disk that exhibits course, which is sloping outwards from inner side in radial direction
PCT/EP2007/061696 WO2008080665A1 (en) 2006-12-27 2007-10-30 Eccentric grinder

Publications (2)

Publication Number Publication Date
EP2117776A1 EP2117776A1 (en) 2009-11-18
EP2117776B1 true EP2117776B1 (en) 2011-12-14

Family

ID=38912639

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07822050A Active EP2117776B1 (en) 2006-12-27 2007-10-30 Eccentric grinder

Country Status (7)

Country Link
US (1) US8105132B2 (en)
EP (1) EP2117776B1 (en)
CN (1) CN101568407B (en)
AT (1) ATE536959T1 (en)
DE (1) DE102006061634A1 (en)
RU (1) RU2464151C2 (en)
WO (1) WO2008080665A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006061634A1 (en) * 2006-12-27 2008-07-03 Robert Bosch Gmbh Eccentric grinder, has friction brake device with friction surface that stands perpendicularly to rotation axis of grinding disk that exhibits course, which is sloping outwards from inner side in radial direction
EP2700473B1 (en) * 2011-10-26 2018-12-19 Keitech Co., Ltd. Grinding tool with eccentric rotation shaft
CN103862367A (en) * 2012-12-07 2014-06-18 郑明达 Eccentric base for automotive grinding machine
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
US9387578B2 (en) * 2013-10-28 2016-07-12 Black & Decker Inc. Handle arrangement for sander
CN104589189B (en) * 2015-02-02 2017-07-14 浙江金美电动工具有限公司 Dual trace eccentric structure polishing machine
US20180009084A1 (en) * 2016-07-07 2018-01-11 Stone Pro Equipment Company Abrading Disc
US10632589B2 (en) 2016-08-29 2020-04-28 Black & Decker Inc. Power tool
CN107225477A (en) * 2017-06-06 2017-10-03 浙江亚特电器有限公司 A kind of circle sand machine using safety

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1779682A (en) * 1928-11-16 1930-10-28 Stratmore Company Surfacing apparatus
DE3906549A1 (en) 1989-03-02 1990-09-06 Bosch Gmbh Robert Eccentric grinder
US5018314A (en) 1989-06-08 1991-05-28 Makita Electric Works, Ltd. Sander
US5237781A (en) * 1992-03-23 1993-08-24 Kris Demetrius Hand held disc type surfacing machine
DE4233729A1 (en) * 1992-10-07 1994-04-14 Bosch Gmbh Robert Eccentric disc grinder with grinding disc brake
GB9423848D0 (en) * 1994-11-25 1995-01-11 Black & Decker Inc Improved oscillating hand tool
US6059644A (en) * 1998-11-18 2000-05-09 3M Innovative Properties Company Back-up pad for abrasive articles and method of making
DE19941620A1 (en) * 1999-09-01 2001-03-08 Bosch Gmbh Robert Hand tool
DE19952108B4 (en) * 1999-10-29 2007-09-20 Robert Bosch Gmbh Exzentertellerschleifmaschine
DE20023967U1 (en) * 2000-03-14 2008-02-28 Robert Bosch Gmbh Electric hand grinder, in particular eccentric grinder
GB2376651B (en) * 2000-03-14 2003-05-14 Bosch Gmbh Robert Hand-held electric sanding machine,in particular eccentric sander
DE10031761A1 (en) * 2000-06-29 2002-01-10 Bosch Gmbh Robert Eccentric plate grinding machine has cylindrical housing, braking arrangement with through openings exposed and closed by valve-like flaps for ventilating suction chamber
DE10126675A1 (en) * 2001-06-01 2002-12-05 Bosch Gmbh Robert Electric hand-held grinder machine has support on underside of grinder plate, rim-guard, elastic bar, and axial arm
DE10148339A1 (en) * 2001-09-29 2003-04-10 Bosch Gmbh Robert Manual grinder with support and intermediate plates joins these nontwistably without axial play by spring to give catches and slots with grinding cushion releasably fixed to plate underside.
TWM256252U (en) * 2004-03-09 2005-02-01 Ren-Ben Jang Improved structure of polishing plate
US7357701B2 (en) * 2005-04-07 2008-04-15 Dan Gautier Water driven rotary tool
DE102006061634A1 (en) * 2006-12-27 2008-07-03 Robert Bosch Gmbh Eccentric grinder, has friction brake device with friction surface that stands perpendicularly to rotation axis of grinding disk that exhibits course, which is sloping outwards from inner side in radial direction

Also Published As

Publication number Publication date
CN101568407B (en) 2013-02-06
RU2009128745A (en) 2011-02-10
US8105132B2 (en) 2012-01-31
WO2008080665A1 (en) 2008-07-10
ATE536959T1 (en) 2011-12-15
EP2117776A1 (en) 2009-11-18
RU2464151C2 (en) 2012-10-20
DE102006061634A1 (en) 2008-07-03
CN101568407A (en) 2009-10-28
US20100062695A1 (en) 2010-03-11

Similar Documents

Publication Publication Date Title
EP2117776B1 (en) Eccentric grinder
EP0591876B1 (en) Eccentric disc grinder with grinding disc brake
EP2753843B1 (en) Piston for a brake caliper of a disk brake
WO1998023410A1 (en) Manually driven machine
DE102005010583A1 (en) Polishing disc for a tool for fine machining of optically effective surfaces on in particular spectacle lenses
EP2611573B1 (en) Grinding wheel unit for a rotary grinding machine
EP2800922B1 (en) Lubricant dispenser
EP0708205B1 (en) Process and apparatus for treating the rolling surfaces of rails by circumferential grinding
EP3459679A1 (en) Device for generating an undefined finish on a surface of a metal workpiece in a continuous method
EP1859903B1 (en) Rotary tool for surface processing
DE102013003420A1 (en) processing arrangement
DE102010032056B4 (en) piston unit
EP2345498B1 (en) Hand saw with ring-shaped saw blade
EP1100652B1 (en) Sanding device for curved surfaces
EP2492072A2 (en) Processing device with feeler roller
DE102006061635A1 (en) Hand-guided machine tool e.g. eccentric grinder, has support point that shifts between container and housing in axis direction with respect to longitudinal axis during rotation of container around longitudinal axis
DE102011011384B4 (en) Hand machine tool with a vane motor made from a non-metal
DE102008048495A1 (en) Hydrostatic machine i.e. axial piston machine, for use as hydraulic motor that is driven by diesel engine of work machine has fluid flow guided over bearing part that is arranged for producing pumping effect to leakage oil connection
WO2001064394A1 (en) Grinding machine
DE102010015560A1 (en) hand tool
EP2239096B1 (en) Centrifugal force grinding machine with a device for setting the gap width
DE4226741C2 (en) Hand-held grinding machine, especially an eccentric grinding machine
WO2002006006A1 (en) Hand-tool comprising a return device for the gear lubricant
DE102013005000B4 (en) Device head for a tool device, in particular for a circular saw or an angle grinder
EP1873428A1 (en) Turntable having lower maintainance requirements

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20090727

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20100621

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502007008875

Country of ref document: DE

Effective date: 20120315

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20111214

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111214

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20111214

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120315

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111214

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111214

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111214

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111214

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111214

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120414

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111214

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111214

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111214

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120314

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111214

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120416

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111214

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111214

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111214

26N No opposition filed

Effective date: 20120917

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111214

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502007008875

Country of ref document: DE

Effective date: 20120917

BERE Be: lapsed

Owner name: ROBERT BOSCH G.M.B.H.

Effective date: 20121031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120325

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121031

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111214

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121031

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121031

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111214

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 536959

Country of ref document: AT

Kind code of ref document: T

Effective date: 20121031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121031

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20131022

Year of fee payment: 7

Ref country code: FR

Payment date: 20131018

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111214

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121030

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20071030

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20141030

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20141030

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20150630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20141031

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20231218

Year of fee payment: 17