EP2125289A1 - Grinding disk for an eccentric grinding machine - Google Patents

Grinding disk for an eccentric grinding machine

Info

Publication number
EP2125289A1
EP2125289A1 EP07857778A EP07857778A EP2125289A1 EP 2125289 A1 EP2125289 A1 EP 2125289A1 EP 07857778 A EP07857778 A EP 07857778A EP 07857778 A EP07857778 A EP 07857778A EP 2125289 A1 EP2125289 A1 EP 2125289A1
Authority
EP
European Patent Office
Prior art keywords
plate
sanding
diameter
pad
mass
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP07857778A
Other languages
German (de)
French (fr)
Other versions
EP2125289B1 (en
Inventor
Bernhard Krauss
Christian Funke
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 EP2125289A1 publication Critical patent/EP2125289A1/en
Application granted granted Critical
Publication of EP2125289B1 publication Critical patent/EP2125289B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • B24B45/00—Means for securing grinding wheels on rotary arbors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D9/00—Wheels or drums supporting in exchangeable arrangement a layer of flexible abrasive material, e.g. sandpaper
    • B24D9/08—Circular back-plates for carrying flexible material

Definitions

  • the invention relates to a sanding pad for an eccentric sanding machine according to the preamble of claim 1.
  • a known hand grinder designed as an eccentric sander (US Pat. No. 5,018,314) has a circular sanding pad which is mounted by means of a rotary bearing on an eccentric output shaft of an eccentric gear driven by an electric motor.
  • the sanding pad comprises a support body and an abrasive carrier.
  • the support body of the sanding pad has a flat plate and a right angle projecting from the plate, integral with the plate bearing spigot, in which the pivot bearing is inserted.
  • the made of plastic, circular abrasive carrier is flat against the plate of the support body and overlaps with its correspondingly shaped edge of the plate of the support body like a clip.
  • a known sanding pad for a hand grinder (EP 0 557 733 A1) has a support plate made of plastic, a foamed on the support plate cushion as a support for an abrasive and a steel disc arranged between them as a reinforcing member.
  • the underside of the pad forms a flat support surface for a sanding sheet and is provided with Velcro strips on which adheres to the Abschleurliensen the sanding sheet.
  • the support plate has on its upper side facing away from the sanding pad on a bearing surface surrounded by a centering ring for attaching the sanding pad to an eccentrically driven driver of an eccentric grinding machine.
  • the eccentric component mass of the grinding disc is statically and dynamically stabilized by at least one balancing mass acting on the output shaft of the electric motor. Because the size of the Leveling compound is adapted to the mass of the sanding pad, only one and the same sanding pad can be operated on the eccentric sanding machine.
  • the sanding pad according to the invention for an eccentric grinding machine has the advantage that it can be operated with the same eccentric grinding machine by the fact that the plate mass independent of the selected plate diameter, fixed value of grinding disc to achieve quality-optimal grinding results with different diameter and operated without this negative impact on the
  • a grinding disc with a disc diameter of 150mm can be used for grinding large surfaces and a grinding disc with a disc diameter of 125mm can be used in the same eccentric grinding machine for grinding corners and concave surfaces.
  • this has the advantage that he can use the same eccentric grinding a whole set of grinding pads with specially adapted to the type of grinding plate diameters, the machine maintains its good handling quality unchanged.
  • the value of the plate mass fixed by the leveling compound in the eccentric grinding machine can be maintained independently of the plate diameter in various ways, e.g. according to an advantageous embodiment of the invention, characterized in that the sanding plate is designed with a sanding plate height, which is in inverse proportion to the diameter of the plate, which means that in finished the plate with a large plate diameter, the plate height is made small and vice versa in finished the sanding plate a small diameter, the plate height is made much larger.
  • the sanding pad consists of at least two components, a support plate for attaching the sanding plate to the eccentric of the eccentric sanding machine and attached to the support plate sanding pad with a support surface for a releasably secured abrasive sheet.
  • the sanding plate of the predetermined value of the plate mass regardless of the plate diameter thereby be complied with that the density of the support plate material and / or the pad material is in inverse proportion to the size of the plate diameter.
  • the sanding pad with a large diameter thus has a sanding pad material with low density and the sanding pad in the design with a small plate diameter a fairly large density.
  • the fixed predetermined value of the plate mass regardless of the plate diameter can be maintained by different choice of the material of the support plate and / or sanding pad.
  • the material of the support plate and / or sanding pad can be used as a material for the support plate, a hard plastic and the abrasive cushion, a plastic foam, wherein the density of the hard plastic is adapted to the plate diameter.
  • FIG. 2 shows a tool set of two grinding discs with different diameters for the eccentric grinding machine in FIG. 1, shown in plan view and in section along the line A-A.
  • Fig. 1 is fragmentary and partially cut a hand-held eccentric grinding, hereinafter referred to as eccentric grinder, shown for performing grinding in side view.
  • the eccentric grinder has a housing 11, which merges in the viewing direction to the left into a handle 12, on the underside of a switch button 13 for switching on and off of a recorded inside the housing 11 electric motor 14 is arranged.
  • electric motor 14 On the output shaft 15 of the electric motor 14 is rotatably seated an impeller 16 of a suction fan, which is sucked off the grinding dust on grinding on the surface of a workpiece grinding dust and transported via a discharge port 17 in a dust collecting container.
  • an eccentric recess 18 is provided, into which a at the Underneath the housing 11 protruding driver 19 is immersed, which is supported on two roller bearings 20, 21 on the inner wall of the eccentric recess 18.
  • the rolling bearings 20, 21 takes place, depending on the bearing friction, the rotational drive of the driver 19.
  • Rolling 20, 21 and driver 19 are held axially immovable in the eccentric recess 18.
  • a flat bearing surface 191 is formed, to which a sanding pad 22 can be attached with a bearing surface 23 formed on its upper side.
  • a disk brake 25 is secured against rotation against rotation, which hangs on the top of the sanding pad 22.
  • the sanding pad 22 consists of two components, a support plate 26 made of a hard plastic and attached to the underside of the support plate 26 sanding pad 27.
  • the contact surface 23 of the sanding pad 22 is formed centrally on the support plate 26.
  • a support surface 271 is formed for a not shown abrasive sheet, which carries a Velcro covering 28 for attaching a velor back bearing sanding sheet.
  • balancing mass In the sanding pad 22 through 27 and dust pad 27 through dust extraction openings 29 are present, through which the grinding dust is sucked into a formed in the housing 11, connected to the Ausblasstutzen 17 Staubansaughunt in which the impeller 16 rotates.
  • the balance weight can be realized for example by a corresponding design of the impeller 16 of the suction fan.
  • the sum of the masses of the existing balancing weights is referred to below as balancing mass.
  • sanding discs with grinding surfaces of different sizes that is to say disc diameters of different sizes.
  • a grinding disc with a disc diameter of 150mm is recommended for grinding larger, flat workpiece surfaces
  • a grinding disc with a disc diameter of 125mm is recommended for grinding corners and concave surfaces.
  • the plate mass of each grinding plate 22 has a fixed predetermined value, which is independent of the selected plate diameter.
  • This value is determined by the existing in the eccentric disc balancing mass, which in turn is tuned to the unbalance operation of the eccentric grinder with a mounted on his driver 19, selected grinding plate 22 which is covered with an abrasive sheet.
  • the sanding pad 22 is designed so that its center of gravity lies on the plate axis in a comparable distance from the contact surface 23 independent of the plate dimensions, ie the orbital sander always sees the same mass with the center of mass lying at the same location, irrespective of which sanding pad with which Plate diameter is attached to the driver 19.
  • the sanding pad 22 is made so that the distance of the contact surface 23 of the abrasive sheet contact surface 271 is in inverse proportion to the plate diameter. Accordingly, the left in Fig. 2 sanding pad 22 with the larger diameter plate a much smaller axial plate height than the grinding disc 22 shown in Fig. 2 on the right with the smaller plate diameter. Additionally or alternatively, the density of the material of the support plates 26 is in inverse proportion to the size of the plate diameter. Thus, in the left in Fig. 2 sanding pad 22 with the larger diameter plate the support plate material has a significantly lower density than the support plate material in the right in Fig. 2 sanding disc with the smaller diameter plate.
  • the support plate 26 of both sanding pad 22 is made of hard plastic, wherein the density of the plastic material in both sanding pad 22 is the same size or the density of the hard plastic in the larger diameter sanding pad 22 smaller than the density of the hard plastic in the smaller diameter sanding pad 22 is selected.
  • the material for the sanding pad 27 consists in the latter case in both sanding pads 22 made of plastic foam.
  • a metal insert may be embedded in the support plate 26 made of hard plastic of each grinding plate 22, a metal insert.
  • the size of the metal insert is again in inverse proportion to the size of the plate diameter.
  • smaller-diameter sanding pad 22 a much larger mass than the metal insert in the left in Fig. 2, larger diameter sanding pad 22nd
  • the contact surface 23 for attaching the sanding pad 22 to the receiving surface 191 of the driver 19 is formed identical.
  • the Staubabsaugöffhungen 29 are each adapted to the hole pattern of the predetermined for the disc diameter grinding blade.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)

Abstract

The invention relates to a grinding disk for an eccentric grinding machine. In order to operate the grinding disk (22) having different disks diameters on one and the same eccentric grinding machine for achieving grinding results at optimum quality, without any loss of smoothness and handling quality, the disk mass of the grinding disk has a fixed predetermined value that is independent of the disk diameter selected.

Description

Beschreibung description
Titeltitle
Schleifteller für eine ExzenterschleifmaschineSanding pad for an eccentric sanding machine
Stand der TechnikState of the art
Die Erfindung geht aus von einem Schleifteller für eine Exzenterschleifmaschine nach dem Oberbegriff des Anspruchs 1.The invention relates to a sanding pad for an eccentric sanding machine according to the preamble of claim 1.
Eine bekannte, als Exzenterschleifer ausgebildete Handschleifmaschine (US 5 018 314) weist einen kreisförmigen Schleifteller auf, der mittels eines Drehlagers auf einer elektromotorisch angetriebenen, exzentrischen Abtriebswelle eines Exzentergetriebes aufgesetzt ist. Der Schleifteller umfasst einen Stützkörper und einen Schleifmittelträger. Der Stützkörper des Schleiftellers weist eine ebene Platte und einen von der Platte rechtwinklig abstehenden, mit der Platte einstückigen Lagerstutzen auf, in den das Drehlager eingesetzt ist. Der aus Kunststoff gefertigte, kreisrunde Schleifmittelträger liegt plan an der Platte des Stützkörpers an und übergreift mit seinem entsprechend ausgebildeten Rand die Platte des Stützkörpers clipsartig.A known hand grinder designed as an eccentric sander (US Pat. No. 5,018,314) has a circular sanding pad which is mounted by means of a rotary bearing on an eccentric output shaft of an eccentric gear driven by an electric motor. The sanding pad comprises a support body and an abrasive carrier. The support body of the sanding pad has a flat plate and a right angle projecting from the plate, integral with the plate bearing spigot, in which the pivot bearing is inserted. The made of plastic, circular abrasive carrier is flat against the plate of the support body and overlaps with its correspondingly shaped edge of the plate of the support body like a clip.
Ein bekannter Schleifteller für eine Handschleifmaschine (EP 0 557 733 Al) weist eine Stützplatte aus Kunststoff, ein an die Stützplatte angeschäumtes Kissen als Träger für ein Schleifmittel sowie eine zwischen diesen angeordnete Stahlscheibe als Verstärkungsteil auf. Die Unterseite des Kissens bildet eine ebene Auflagefläche für ein Schleifblatt und ist mit Klettbahnen versehen, auf denen der Verlourrücken des Schleifblatts haftet. Die Stützplatte weist an ihrer vom Schleifkissen abgekehrten Oberseite eine von einem Zentrierring umschlossene Anlagefläche zum Ansetzen des Schleiftellers an einen exzentrisch angetriebenen Mitnehmer einer Exzenterschleifmaschine auf.A known sanding pad for a hand grinder (EP 0 557 733 A1) has a support plate made of plastic, a foamed on the support plate cushion as a support for an abrasive and a steel disc arranged between them as a reinforcing member. The underside of the pad forms a flat support surface for a sanding sheet and is provided with Velcro strips on which adheres to the Abschleurrücken the sanding sheet. The support plate has on its upper side facing away from the sanding pad on a bearing surface surrounded by a centering ring for attaching the sanding pad to an eccentrically driven driver of an eccentric grinding machine.
Zur Gewährleistung einer zufriedenstellenden Laufruhe des Exzenterschleifers ist die exzentrische Bauteilmasse des Schleiftellers durch mindestens eine an der Abtriebswelle des Elektromotors angreifenden Ausgleichsmasse statisch und dynamisch stabilisiert. Da die Größe der Ausgleichsmasse auf die Masse des Schleiftellers abgestimmt ist, kann an der Exzenterschleifmaschine immer nur einundderselbe Schleifteller betrieben werden.To ensure a satisfactory smooth running of the eccentric grinder, the eccentric component mass of the grinding disc is statically and dynamically stabilized by at least one balancing mass acting on the output shaft of the electric motor. Because the size of the Leveling compound is adapted to the mass of the sanding pad, only one and the same sanding pad can be operated on the eccentric sanding machine.
Offenbarung der ErfindungDisclosure of the invention
Der erfindungsgemäße Schleifteller für eine Exzenterschleifmaschine hat den Vorteil, dass dadurch, dass die Tellermasse einen von dem jeweils gewählten Tellerdurchmesser unabhängigen, fest vorgegebenen Wert aufweist der Schleifteller zur Erzielung qualitätsoptimaler Schleifergebnisse mit verschiedenen Durchmesser ausgeführt und mit derselben Exzenterschleifmaschine betrieben werden kann, ohne dass dies einen negativen Einfluss auf dieThe sanding pad according to the invention for an eccentric grinding machine has the advantage that it can be operated with the same eccentric grinding machine by the fact that the plate mass independent of the selected plate diameter, fixed value of grinding disc to achieve quality-optimal grinding results with different diameter and operated without this negative impact on the
Laufruhe der Maschine hat. So kann beispielhaft zum Schleifen großer Flächen ein Schleifteller mit einem Tellerdurchmesser 150mm und zum Schleifen von Ecken und konkaven Flächen ein Schleifteller mit dem Tellerdurchmesser 125mm in dieselbe Exzenterschleifmaschine eingesetzt werden. Für den Kunden bringt dies den Vorteil, dass er mit derselben Exzenterschleifmaschine einen ganzen Werkzeugsatz von Schleiftellern mit an die Art der Schleifarbeiten speziell angepassten Tellerdurchmessern einsetzen kann, wobei die Maschine unverändert ihre gute Handhabungsqualität beibehält.Smooth running of the machine has. For example, a grinding disc with a disc diameter of 150mm can be used for grinding large surfaces and a grinding disc with a disc diameter of 125mm can be used in the same eccentric grinding machine for grinding corners and concave surfaces. For the customer this has the advantage that he can use the same eccentric grinding a whole set of grinding pads with specially adapted to the type of grinding plate diameters, the machine maintains its good handling quality unchanged.
Durch die in den weiteren Ansprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen des im Anspruch 1 angegebenen Schleiftellers möglich.The measures listed in the further claims advantageous refinements and improvements of the claim 1 sanding plate are possible.
Der durch die Ausgleichsmasse in der Exzenterschleifmaschine fest vorgegebene Wert der Tellermasse kann unabhängig von dem Tellerdurchmesser auf verschiedene Weise eingehalten werden, z.B. gemäß einer vorteilhaften Ausführungsform der Erfindung dadurch, dass der Schleifteller mit einer Schleiftellerhöhe ausgeführt wird, die im umgekehrten Verhältnis zum Tellerdurchmesser steht, was heißt, dass bei Fertigen des Tellers mit einem großen Tellerdurchmesser die Tellerhöhe entsprechend klein gemacht wird und umgekehrt bei Fertigen des Schleiftellers mit einem kleinen Durchmesser die Tellerhöhe sehr viel größer gemacht wird.The value of the plate mass fixed by the leveling compound in the eccentric grinding machine can be maintained independently of the plate diameter in various ways, e.g. according to an advantageous embodiment of the invention, characterized in that the sanding plate is designed with a sanding plate height, which is in inverse proportion to the diameter of the plate, which means that in finished the plate with a large plate diameter, the plate height is made small and vice versa in finished the sanding plate a small diameter, the plate height is made much larger.
Gemäß einer vorteilhaften Ausführungsform der Erfindung besteht der Schleifteller aus mindestens zwei Komponenten, einer Tragplatte zum Ansetzen des Schleiftellers an den Exzenter der Exzenterschleifmaschine und einem an der Tragplatte befestigten Schleifkissen mit einer Auflagefläche für ein lösbar befestigtes Schleifblatt. Bei dieser Ausführung des Schleiftellers kann der vorgegebene Wert der Tellermasse unabhängig von dem Tellerdurchmesser dadurch eingehalten werden, dass die Dichte des Tragplattenmaterials und/oder des Schleifkissenmaterials im umgekehrten Verhältnis zu der Größe des Tellerdurchmessers steht. Der Schleifteller mit einem großen Durchmesser hat demnach ein Schleiftellermaterial mit geringer Dichte und der Schleifteller in der Ausführung mit einem kleinen Tellerdurchmesser eine recht große Dichte.According to an advantageous embodiment of the invention, the sanding pad consists of at least two components, a support plate for attaching the sanding plate to the eccentric of the eccentric sanding machine and attached to the support plate sanding pad with a support surface for a releasably secured abrasive sheet. In this embodiment, the sanding plate of the predetermined value of the plate mass regardless of the plate diameter thereby be complied with that the density of the support plate material and / or the pad material is in inverse proportion to the size of the plate diameter. The sanding pad with a large diameter thus has a sanding pad material with low density and the sanding pad in the design with a small plate diameter a fairly large density.
Gemäß einer vorteilhaften Ausführungsform der Erfindung kann der fest vorgegebene Wert der Tellermasse unabhängig von dem Tellerdurchmesser auch durch verschiedene Wahl des Materials von Tragplatte und /oder Schleifkissen eingehalten werden. Z.B. kann als Material für die Tragplatte ein Hartkunststoff und für das Schleif kissen ein Kunststoffschaum verwendet werden, wobei die Dichte des Hartkunststoffes an den Tellerdurchmesser angepasst wird. Alternativ ist es möglich, in den Hartkunststoff eine Metalleinlage einzubetten, deren Masse im umgekehrten Verhältnis zur Größe des Tellerdurchmessers steht.According to an advantageous embodiment of the invention, the fixed predetermined value of the plate mass regardless of the plate diameter can be maintained by different choice of the material of the support plate and / or sanding pad. For example, can be used as a material for the support plate, a hard plastic and the abrasive cushion, a plastic foam, wherein the density of the hard plastic is adapted to the plate diameter. Alternatively, it is possible to embed in the hard plastic, a metal insert whose mass is in inverse proportion to the size of the plate diameter.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Die Erfindung ist anhand eines in der Zeichnung dargestellten Ausführungsbeispiels in der nachfolgenden Beschreibung näher erläutert. Es zeigen:The invention is explained in more detail in the following description with reference to an embodiment shown in the drawing. Show it:
Fig. 1 ausschnittweise eine Seitenansicht einer Exzenterschleifmaschine mit wechselbarem Schleifteller, teilweise geschnitten,1 a detail of a side view of an eccentric grinding machine with exchangeable grinding plate, partially cut,
Fig. 2 einen Werkzeugsatz aus zwei in Draufsicht und im Schnitt gemäß Linie A - A dargestellten Schleiftellern mit unterschiedlichen Durchmessern für die Exzenterschleifmaschine in Fig. 1.2 shows a tool set of two grinding discs with different diameters for the eccentric grinding machine in FIG. 1, shown in plan view and in section along the line A-A.
In Fig. 1 ist ausschnittweise und teilweise geschnitten eine handgeführte Exzenterschleifmaschine, nachfolgend kurz Exzenterschleifer genannt, zur Durchführung von Schleifarbeiten in Seitenansicht dargestellt. Der Exzenterschleifer hat ein Gehäuse 11 , das in Betrachtungsrichtung nach links in einen Handgriff 12 übergeht, an dessen Unterseite eine Schaltertaste 13 zum Ein- und Ausschalten eines im Innern des Gehäuses 11 aufgenommenen Elektromotors 14 angeordnet ist. Auf der Abtriebswelle 15 des Elektromotors 14 sitzt drehfest ein Laufrad 16 eines Sauggebläses, mit dem der bei Schleifarbeiten auf der Oberfläche eines Werkstücks anfallende Schleifstaub abgesaugt und über einen Ausblasstutzen 17 in einen Staubauffangbehälter transportiert wird. In der Nabe des Laufrads 16 ist eine exzentrische Ausnehmung 18 vorgesehen, in die ein an der Unterseite des Gehäuses 11 vorstehender Mitnehmer 19 eintaucht, der sich über zwei Wälzlager 20, 21 an der Innenwand der exzentrischen Ausnehmung 18 abstützt. Über die Wälzlager 20, 21 erfolgt, abhängig von der Lagerreibung, die Drehmitnahme des Mitnehmers 19. Wälzlager 20, 21 und Mitnehmer 19 sind axial unverschieblich in der exzentrischen Ausnehmung 18 gehalten.In Fig. 1 is fragmentary and partially cut a hand-held eccentric grinding, hereinafter referred to as eccentric grinder, shown for performing grinding in side view. The eccentric grinder has a housing 11, which merges in the viewing direction to the left into a handle 12, on the underside of a switch button 13 for switching on and off of a recorded inside the housing 11 electric motor 14 is arranged. On the output shaft 15 of the electric motor 14 is rotatably seated an impeller 16 of a suction fan, which is sucked off the grinding dust on grinding on the surface of a workpiece grinding dust and transported via a discharge port 17 in a dust collecting container. In the hub of the impeller 16, an eccentric recess 18 is provided, into which a at the Underneath the housing 11 protruding driver 19 is immersed, which is supported on two roller bearings 20, 21 on the inner wall of the eccentric recess 18. About the rolling bearings 20, 21 takes place, depending on the bearing friction, the rotational drive of the driver 19. Rolling 20, 21 and driver 19 are held axially immovable in the eccentric recess 18.
An der Unterseite des Mitnehmers 19 ist eine ebene Auflagefläche 191 ausgebildet, an die ein Schleifteller 22 mit einer an seiner Oberseite ausgebildeten Anlagefläche 23 ansetzbar ist. Die Verbindung zwischen Schleifteller 22 und Mitnehmer 19 erfolgt über mindestens eine Kopfschraube 24, die in mindestens eine im Mitnehmer 19 ausgebildete, axiale Bohrung 192 einschraubbar ist. An der Unterseite des Gehäuses 11 ist eine Tellerbremse 25 aus Gummi verdrehgesichert befestigt, die sich auf die Oberseite des Schleiftellers 22 auflegt.On the underside of the driver 19, a flat bearing surface 191 is formed, to which a sanding pad 22 can be attached with a bearing surface 23 formed on its upper side. The connection between the grinding plate 22 and driver 19 via at least one cap screw 24, which is screwed into at least one formed in the driver 19, axial bore 192. At the bottom of the housing 11, a disk brake 25 is secured against rotation against rotation, which hangs on the top of the sanding pad 22.
Der Schleifteller 22 besteht aus zwei Komponenten, einer Tragplatte 26 aus einem Hartkunststoff und einen an der Unterseite der Tragplatte 26 befestigten Schleifkissen 27. Die Anlagefläche 23 des Schleiftellers 22 ist zentrisch an der Tragplatte 26 ausgebildet. An der von der Tragplatte 26 abgekehrten Unterseite des Schleifkissens 27 ist eine Auflagefläche 271 für ein hier nicht dargestelltes Schleifblatt ausgebildet, die zum Befestigen des einen Velourrücken tragenden Schleifblatts einen Klettbelag 28 trägt. Bei Einsatz von selbstklebendem Schleifpapier entfällt der Klettbelag. Im Schleifteller 22 sind durch Tragplatte 26 und Schleifkissen 27 hindurchgehende Staubabsaugöffnungen 29 vorhanden, über die der Schleifstaub in eine im Gehäuse 11 ausgebildete, mit dem Ausblasstutzen 17 verbundene Staubansaugkammer hineingesaugt wird, in der das Laufrad 16 umläuft. Um eine zufriedenstellende Laufruhe des Exzenterschleifers zu erhalten, greift an der Abtriebswelle 15 des Elektromotors 14 mindestens ein hier nicht zu sehendes Ausgleichsgewicht an, das die exzentrische Masse des Schleiftellers 22 statisch und dynamisch neutralisiert. Das Ausgleichsgewicht kann beispielsweise durch eine entsprechende Ausbildung des Laufrads 16 des Sauggebläses realisiert werden. Die Summe der Massen der vorhandenen Ausgleichsgewichte wird nachfolgend als Ausgleichsmasse bezeichnet.The sanding pad 22 consists of two components, a support plate 26 made of a hard plastic and attached to the underside of the support plate 26 sanding pad 27. The contact surface 23 of the sanding pad 22 is formed centrally on the support plate 26. On the side facing away from the support plate 26 underside of the sanding pad 27, a support surface 271 is formed for a not shown abrasive sheet, which carries a Velcro covering 28 for attaching a velor back bearing sanding sheet. When using self-adhesive sanding paper eliminates the Velcro. In the sanding pad 22 through 27 and dust pad 27 through dust extraction openings 29 are present, through which the grinding dust is sucked into a formed in the housing 11, connected to the Ausblasstutzen 17 Staubansaugkammer in which the impeller 16 rotates. In order to obtain a satisfactory smoothness of the eccentric grinder, engages the output shaft 15 of the electric motor 14 at least one here not to see balancing weight, which neutralizes the eccentric mass of the grinding plate 22 static and dynamic. The balance weight can be realized for example by a corresponding design of the impeller 16 of the suction fan. The sum of the masses of the existing balancing weights is referred to below as balancing mass.
Zur Erzielung qualitätsoptimaler Schleifergebnisse bei Bearbeitung von verschiedenen Werkstückoberflächen ist es vorteilhaft, Schleifteller mit unterschiedlich großen Schleifflächen, also unterschiedlich großen Tellerdurchmessern, zu verwenden. So wird beispielsweise für das Schleifen von größeren, ebenen Werkstückoberflächen ein Schleifteller mit einem Tellerdurchmesser von 150mm und zum Schleifen von Ecken und konkaven Flächen ein Schleifteller mit einem Tellerdurchmesser von 125mm empfohlen. Um Schleifteller mit solch unterschiedlichen Tellerdurchmessern mit dem Exzenterschleifer gemäß Fig. 1 schleifen zu können, ohne dass sich die Handhabungsqualität des Exzenterschleifers, insbesondere dessen Laufruhe verändert, weist die Tellermasse eines jeden Schleiftellers 22 einen fest vorgegebenen Wert auf, der unabhängig von dem gewählten Tellerdurchmesser ist. Dieser Wert ist durch die im Exzenterschleifer vorhandene Ausgleichsmasse vorgegeben, die ihrerseits auf den unwuchtfreien Betrieb des Exzenterschleifers mit einem an seinem Mitnehmer 19 befestigten, ausgewählten Schleifteller 22, der mit einem Schleifblatt belegt ist, abgestimmt ist. Der Schleifteller 22 ist so ausgebildet, dass sein Masseschwerpunkt auf der Tellerachse in einem von den Tellerabmessungen unabhängigen, vergleichbaren Abstand von der Anlagefläche 23 liegt, also der Exzenterschleifer immer die gleiche Masse mit am gleichen Ort liegendem Masseschwerpunkt sieht, unabhängig davon, welcher Schleifteller mit welchem Tellerdurchmesser an dem Mitnehmer 19 befestigt ist.In order to achieve quality-optimal grinding results when machining different workpiece surfaces, it is advantageous to use sanding discs with grinding surfaces of different sizes, that is to say disc diameters of different sizes. For example, a grinding disc with a disc diameter of 150mm is recommended for grinding larger, flat workpiece surfaces, and a grinding disc with a disc diameter of 125mm is recommended for grinding corners and concave surfaces. To sanding plate with such 1, without the handling quality of the eccentric grinder, in particular its smoothness changed, the plate mass of each grinding plate 22 has a fixed predetermined value, which is independent of the selected plate diameter. This value is determined by the existing in the eccentric disc balancing mass, which in turn is tuned to the unbalance operation of the eccentric grinder with a mounted on his driver 19, selected grinding plate 22 which is covered with an abrasive sheet. The sanding pad 22 is designed so that its center of gravity lies on the plate axis in a comparable distance from the contact surface 23 independent of the plate dimensions, ie the orbital sander always sees the same mass with the center of mass lying at the same location, irrespective of which sanding pad with which Plate diameter is attached to the driver 19.
Um die Tellermasse der in Fig. 2 dargestellten Schleifteller 22 des Werkzeugsatzes für den Exzenterschleifer in Fig. 1 konstant zu halten, sind verschieden konstruktive Maßnahmen einzeln oder in Verbindung miteinander getroffen. So sind z. B. die Schleifteller 22 so gefertigt, dass der Abstand der Anlagefläche 23 von der Schleifblatt- Anlagefläche 271 im umgekehrten Verhältnis zu dem Tellerdurchmesser steht. Demzufolge hat der in Fig. 2 linke Schleifteller 22 mit dem größeren Tellerdurchmesser eine deutlich kleinere axiale Tellerhöhe als der in Fig. 2 rechts dargestellte Schleifteller 22 mit dem kleineren Tellerdurchmesser. Zusätzlich oder alternativ steht auch die Dichte des Materials der Tragplatten 26 im umgekehrten Verhältnis zu der Größe der Tellerdurchmesser. So hat bei dem in Fig. 2 linken Schleifteller 22 mit dem größeren Tellerdurchmesser das Tragplattenmaterial eine deutlich geringere Dichte als das Tragplattenmaterial bei dem in Fig. 2 rechten Schleifteller mit dem kleineren Tellerdurchmesser.In order to keep constant the plate mass of the grinding plates 22 of the tool set for the eccentric grinder shown in FIG. 2 in FIG. 1, various design measures are taken individually or in conjunction with each other. So z. B. the sanding pad 22 is made so that the distance of the contact surface 23 of the abrasive sheet contact surface 271 is in inverse proportion to the plate diameter. Accordingly, the left in Fig. 2 sanding pad 22 with the larger diameter plate a much smaller axial plate height than the grinding disc 22 shown in Fig. 2 on the right with the smaller plate diameter. Additionally or alternatively, the density of the material of the support plates 26 is in inverse proportion to the size of the plate diameter. Thus, in the left in Fig. 2 sanding pad 22 with the larger diameter plate the support plate material has a significantly lower density than the support plate material in the right in Fig. 2 sanding disc with the smaller diameter plate.
Vorzugsweise ist die Tragplatte 26 beider Schleifteller 22 aus Hartkunststoff gefertigt, wobei die Dichte des Kunststoffmaterials in beiden Schleiftellers 22 gleich groß oder die Dichte des Hartkunststoffs in dem durchmessergrößeren Schleifteller 22 kleiner als die Dichte des Hartkunststoffs in dem durchmesserkleineren Schleiftellers 22 gewählt ist. Das Material für das Schleifkissen 27 besteht im letztgenannten Fall in beiden Schleiftellern 22 aus Kunststoffschaum.Preferably, the support plate 26 of both sanding pad 22 is made of hard plastic, wherein the density of the plastic material in both sanding pad 22 is the same size or the density of the hard plastic in the larger diameter sanding pad 22 smaller than the density of the hard plastic in the smaller diameter sanding pad 22 is selected. The material for the sanding pad 27 consists in the latter case in both sanding pads 22 made of plastic foam.
Wie nicht weiter dargestellt ist, kann in der Tragplatte 26 aus Hartkunststoff eines jeden Schleiftellers 22 eine Metalleinlage eingebettet sein. Die Größe der Metalleinlage steht wiederum im umgekehrten Verhältnis zur Größe des Tellerdurchmessers. So besitzt die Materialeinlage in dem in Fig. 2 rechten, durchmesserkleineren Schleifteller 22 eine sehr viel größere Masse als die Metalleinlage in dem in Fig. 2 linken, durchmessergrößeren Schleifteller 22.As not shown, may be embedded in the support plate 26 made of hard plastic of each grinding plate 22, a metal insert. The size of the metal insert is again in inverse proportion to the size of the plate diameter. Thus has the material insert in the right in Fig. 2, smaller-diameter sanding pad 22 a much larger mass than the metal insert in the left in Fig. 2, larger diameter sanding pad 22nd
Bei beiden in Fig. 2 dargestellten Schleiftellern 22 ist die Anlagefläche 23 zum Ansetzen des Schleiftellers 22 an die Aufnahme fläche 191 des Mitnehmers 19 identisch ausgebildet. Die Staubabsaugöffhungen 29 sind jeweils an das Lochmuster des für den Tellerdurchmesser vorgegebenen Schleifblatts angepasst. Da die in Verbindung mit dem durchmessergrößeren Schleifteller 22 verwendeten Schleifblätter ein Lochmuster mit insgesamt sechs runden Löchern aufweisen, besitzt der durchmessergrößere Schleifteller 22 entsprechend sechs um gleiche Umfangswinkel wie die Schleifblattlöcher zueinander versetzte, ovale Staubabsaugöffhungen 29, während der durchmesserkleinere Schleifteller 22 entsprechend dem Lochmuster der vorgeschriebenen Schleifblätter insgesamt acht gleichmäßig auf einem Lochkreis verteilte Staubabsaugöffnungen 29 mit kreisrundem Querschnitt aufweist. In both sanding plates 22 shown in Fig. 2, the contact surface 23 for attaching the sanding pad 22 to the receiving surface 191 of the driver 19 is formed identical. The Staubabsaugöffhungen 29 are each adapted to the hole pattern of the predetermined for the disc diameter grinding blade. Since the abrasive sheets used in conjunction with the larger diameter sanding pad 22 have a hole pattern with a total of six round holes, the larger diameter sanding pad 22 corresponding to six by the same circumferential angle as the sanding holes staggered oval Staubabsaugöffhungen 29, while the smaller diameter sanding pad 22 corresponding to the hole pattern of the prescribed Abrasive sheets has a total of eight evenly distributed on a bolt circle Staubabsaugöffnungen 29 with a circular cross-section.

Claims

Ansprüche claims
1. Schleifteller für eine Exzenterschleifmaschine mit einem Tellerdurchmesser und einer1st sanding pad for an eccentric sanding machine with a plate diameter and a
Tellermasse, dadurch gekennzeichnet, dass die Tellermasse einen von dem gewähltenPlate mass, characterized in that the plate mass one of the selected
Tellerdurchmesser unabhängigen, fest vorgegebenen Wert aufweist.Teller diameter independent, fixed predetermined value.
2. Schleifteller nach Anspruch 1, dadurch gekennzeichnet, dass der Vorgabewert für die Tellermasse durch die Größe einer im Exzenterschleifer vorhandenen Ausgleichsmasse festgelegt ist.2. sanding disc according to claim 1, characterized in that the default value for the plate mass is determined by the size of a present in the eccentric disc balancing mass.
3. Schleifteller nach Anspruch 1 oder 2, gekennzeichnet durch eine an seiner Unterseite ausgebildete Schleifblatt- Auflagefläche (271) und eine an seiner Oberseite ausgebildete3. sanding pad according to claim 1 or 2, characterized by a formed on its underside abrasive sheet-bearing surface (271) and formed on its upper side
Anlagefläche (23) zum Ansetzen an einen exzentrisch angetriebenen Mitnehmer (19) der Exzenterschleifmaschine und durch seine Ausbildung derart, dass sein Masse-Schwerpunkt auf der Tellerachse in einem von dem Tellerabmessungen unabhängigen festen Abstand von der Anlagefläche (23) liegt.Contact surface (23) for attachment to an eccentrically driven driver (19) of the eccentric grinding machine and by its design such that its mass center of gravity is on the plate axis in an independent of the plate dimensions fixed distance from the contact surface (23).
4. Schleifteller nach Anspruch 3, dadurch gekennzeichnet, dass der Abstand zwischen Anlagefläche (23) und der Schleifblatt- Auflagefläche (271) im umgekehrten Verhältnis zu dem Tellerdurchmesser steht.4. sanding pad according to claim 3, characterized in that the distance between the contact surface (23) and the abrasive sheet-supporting surface (271) is in inverse proportion to the plate diameter.
5. Schleifteller nach Anspruch 3 oder 4, gekennzeichnet durch eine Tragplatte (26), an deren5. sanding pad according to claim 3 or 4, characterized by a support plate (26), at the
Oberseite die Anlagefläche (23) ausgebildet ist, und ein an der Unterseite der Tragplatte (26) befestigtes Schleifkissen (27), an dessen von der Tragplatte (26) abgekehrten Unterseite die Schleifblatt- Auflagefläche (271) ausgebildet ist.Upper side of the contact surface (23) is formed, and attached to the underside of the support plate (26) abrasive pad (27), on whose from the support plate (26) facing away from the underside of the abrasive sheet support surface (271) is formed.
6. Schleifteller nach Anspruch 5, dadurch gekennzeichnet, dass die Dichte des6. sanding pad according to claim 5, characterized in that the density of the
Tragplattenmaterials und/oder des Schleifkissenmaterials im umgekehrten Verhältnis zu der Größe des Tellerdurchmessers steht. Support plate material and / or the pad material is in inverse proportion to the size of the plate diameter.
7. Schleifteller nach Ansprach 5, dadurch gekennzeichnet, dass die Tragplatte (26) aus einem Hartkunststoff besteht, in dem eine Metalleinlage eingebettet ist, und dass die Masse der Metalleinlage im umgekehrten Verhältnis zu der Größe des Tellerdurchmessers steht.7. sanding pad according to spoke 5, characterized in that the support plate (26) consists of a hard plastic, in which a metal insert is embedded, and that the mass of the metal insert is in inverse proportion to the size of the plate diameter.
8. Werkzeugsatz für eine Exzenterschleifmaschine mit mindestens zwei Schleiftellern (22), die unterschiedliche Tellerdurchmesser aufweisen, dadurch gekennzeichnet, dass die Schleifteller (22) eine zumindest annähernd gleich große Masse besitzen.8. tool set for an eccentric grinding machine with at least two sanding discs (22) having different plate diameter, characterized in that the sanding plates (22) have an at least approximately equal mass.
9. Werkzeugsatz nach Ansprach 8, dadurch gekennzeichnet, dass jeder Schleifteller (22) eine an seiner Unterseite ausgebildete Schleifblatt- Auflagefläche (271) und eine an seiner Oberseite ausgebildete Anlagefläche (23) zum Ansetzen an einen exzentrisch angetriebenen Mitnehmer (19) der Exzenterschleifmaschine aufweist und dass die Schleifteller (22) so ausgebildet sind, dass ihr auf der Tellerachse liegender Masse-Schwerpunkt einen Axialabstand von der Anlagefläche (23) aufweist, der bei allen Schleiftellern (22) zumindest annähernd gleich groß ist.9. Tool set according to spoke 8, characterized in that each sanding pad (22) has a formed on its underside Abrasive sheet support surface (271) and formed on its upper surface contact surface (23) for attachment to an eccentrically driven driver (19) of the eccentric grinding machine and that the sanding plates (22) are formed such that their mass center of gravity lying on the plate axis has an axial distance from the contact surface (23) which is at least approximately the same in all sanding plates (22).
10. Werkzeugsatz nach Ansprach 8 oder 9, dadurch gekennzeichnet, dass der Abstand zwischen Anlagefläche (23) und Schleifblatt- Auflagefläche (271) mit zunehmendem Tellerdurchmesser der Schleifteller (22) abnimmt.10. Tool set according to spoke 8 or 9, characterized in that the distance between the contact surface (23) and the abrasive sheet support surface (271) decreases with increasing diameter of the grinding disc (22).
11. Werkzeugsatz nach Ansprach 9 oder 10, dadurch gekennzeichnet, dass jeder Schleifteller (22) eine Tragplatte (26), an deren Oberseite die Anlagefläche (23) ausgebildet ist, und ein an der Unterseite der Tragplatte (26) befestigtes Schleifkissen (27) aufweist, an dessen von der Tragplatte (26) abgekehrten Unterseite die Schleifplatten- Auflagefläche (271) ausgebildet ist.11. Tool set according to spoke 9 or 10, characterized in that each sanding plate (22) has a support plate (26), on the upper side of the contact surface (23) is formed, and on the underside of the support plate (26) fixed sanding pad (27) has, on the side facing away from the support plate (26) underside, the sanding plate support surface (271) is formed.
12. Werkzeugsatz nach Ansprach 11, dadurch gekennzeichnet, dass die Dichte des Tragplattenmaterials und/oder des Schleifkissenmaterials der Schleifteller (22) mit zunehmendem Tellerdurchmesser abnimmt.12. Tool set according to spoke 11, characterized in that the density of the support plate material and / or the pad material of the sanding pad (22) decreases with increasing diameter of the plate.
13. Werkzeugsatz nach Ansprach 11, dadurch gekennzeichnet, dass bei jedem Schleifteller (22) die Tragplatte (26) aus einem Hartkunststoff besteht, in dem eine Metalleinlage eingebettet ist, und dass die Masse der Metalleinlage mit zunehmendem Tellerdurchmesser der Schleifteller (22) abnimmt. 13. Tool set according to spoke 11, characterized in that at each sanding pad (22), the support plate (26) consists of a hard plastic, in which a metal insert is embedded, and that the mass of the metal insert decreases with increasing plate diameter of the sanding pad (22).
4. Werkzeugsatz nach einem der Ansprüche 9 bis 13, dadurch gekennzeichnet, dass die Anlageflächen (23) aller Schleifteller (22) in Form und Größe identisch ausgebildet sind. 4. Tool set according to one of claims 9 to 13, characterized in that the contact surfaces (23) of all sanding plates (22) are identical in shape and size.
EP07857778A 2007-02-16 2007-12-19 Tool set for an eccentric grinding machine Active EP2125289B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007007787A DE102007007787A1 (en) 2007-02-16 2007-02-16 Sanding pad for an eccentric sanding machine
PCT/EP2007/064154 WO2008098637A1 (en) 2007-02-16 2007-12-19 Grinding disk for an eccentric grinding machine

Publications (2)

Publication Number Publication Date
EP2125289A1 true EP2125289A1 (en) 2009-12-02
EP2125289B1 EP2125289B1 (en) 2011-03-23

Family

ID=39296068

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07857778A Active EP2125289B1 (en) 2007-02-16 2007-12-19 Tool set for an eccentric grinding machine

Country Status (7)

Country Link
US (1) US8113921B2 (en)
EP (1) EP2125289B1 (en)
CN (1) CN101605631A (en)
AT (1) ATE502726T1 (en)
DE (2) DE102007007787A1 (en)
RU (1) RU2461454C2 (en)
WO (1) WO2008098637A1 (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101890671B (en) * 2009-02-17 2014-05-28 C.&E.泛音有限公司 Tool for grinding or polishing for an oscillation drive
USD619152S1 (en) 2009-12-18 2010-07-06 Techtronic Power Tools Technology Limited Adapter
USD623034S1 (en) 2009-12-18 2010-09-07 Techtronic Power Tools Technology Limited Tool arbor
CN102107397B (en) * 2009-12-25 2015-02-04 3M新设资产公司 Grinding wheel and method for manufacturing grinding wheel
USD658005S1 (en) * 2010-07-09 2012-04-24 Grace Manufacturing, Inc. Culinary cutting blade
USD646542S1 (en) 2010-09-29 2011-10-11 Milwaukee Electric Tool Corporation Accessory interface for a tool
USD653523S1 (en) 2010-09-29 2012-02-07 Milwaukee Electric Tool Corporation Adapter for a tool
USD651062S1 (en) 2010-09-29 2011-12-27 Milwaukee Electric Tool Corporation Tool interface for an accessory
USD651876S1 (en) 2010-12-14 2012-01-10 Techtronic Power Tools Technology Limited Universal interface for accessory blades
USD651878S1 (en) 2010-12-14 2012-01-10 Techtronic Power Tools Technology Limited Universal interface for accessory blades
USD652274S1 (en) 2010-12-14 2012-01-17 Techtronic Power Tools Technology Limited Universal interface for accessory blades
USD651875S1 (en) 2010-12-14 2012-01-10 Techtronic Power Tools Technology Limited Universal interface for accessory blades
USD651874S1 (en) 2010-12-14 2012-01-10 Techtronic Power Tools Technology Limited Universal interface for accessory blades
USD651877S1 (en) 2010-12-14 2012-01-10 Techtronic Power Tools Technology Limited Universal interface for accessory blades
USD694597S1 (en) 2012-06-25 2013-12-03 Techtronic Power Tools Technology Limited Universal interface for accessory blades
USD694598S1 (en) 2012-06-25 2013-12-03 Techtronic Power Tools Technology Limited Universal interface for accessory blades
USD694076S1 (en) 2012-06-25 2013-11-26 Techtronic Power Tools Technology Limited Universal interface for accessory blades
USD694599S1 (en) 2012-06-25 2013-12-03 Techtronic Power Tools Technology Limited Universal interface for accessory blades
USD694596S1 (en) 2012-06-25 2013-12-03 Techtronic Power Tools Technology Limited Universal interface for accessory blades
DE102012223969A1 (en) * 2012-12-20 2014-06-26 Robert Bosch Gmbh Traction tractor with electronically commutated motor and integrated electronics
US9555554B2 (en) 2013-05-06 2017-01-31 Milwaukee Electric Tool Corporation Oscillating multi-tool system
WO2015164920A1 (en) * 2014-05-01 2015-11-05 Arbortech Industries Limited Random orbital sander
BR112016027187B1 (en) 2014-05-29 2022-04-12 Saint-Gobain Abrasives, Inc. Abrasive article with a core including a polymer material, abrasive wheel and their method of preparation
US10124463B2 (en) * 2015-02-03 2018-11-13 Johnny Blox, Llc Sanding pad
US11399639B1 (en) * 2021-02-05 2022-08-02 Harbor Freight Tools Usa, Inc. Self-righting packaging for display of item with aperture
KR102570519B1 (en) * 2021-05-11 2023-08-25 주식회사 디어포스 A high compatible abraive pad assembly
USD1021596S1 (en) * 2024-01-04 2024-04-09 Ningbo Deyan Technology Co., Ltd. Grinding disc

Family Cites Families (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2685155A (en) * 1951-04-28 1954-08-03 Minnesota Mining & Mfg Multiple center hole abrasive disk
US2694886A (en) * 1952-07-12 1954-11-23 Allison Company Abrasive cutting wheel
US2726495A (en) * 1952-10-04 1955-12-13 Field Albert Abrading implement
US2919521A (en) * 1958-09-25 1960-01-05 Thomas M Durney Internal grinder quill
CH553621A (en) * 1972-10-23 1974-09-13 Tatar Alexander PROCESS FOR SHARPENING FOUR-SIDED DRILLS AND SHARPENING MACHINE FOR IMPLEMENTING THIS PROCESS.
US3918216A (en) * 1975-03-17 1975-11-11 Corning Glass Works Tubing severing method
JPS52106504A (en) * 1976-03-04 1977-09-07 Bridgestone Corp Radial pneumatic tire for rough ground having superior side cut resist ability
US4052822A (en) * 1976-03-15 1977-10-11 Western Gear Corporation Method and apparatus for abrasively cutting objects
SU642139A1 (en) * 1977-03-17 1979-01-15 Всесоюзный Заочный Инженерно-Строительный Институт Flat-grinding machine
DE3518984A1 (en) * 1985-05-25 1986-11-27 Festo KG, 7300 Esslingen BALANCED ORBIT SANDER
DE3615799C2 (en) * 1986-05-10 1994-10-13 Bosch Gmbh Robert Eccentric sander with a device for changing the grinding movement
DE3620136C5 (en) * 1986-06-14 2007-01-11 Robert Bosch Gmbh Motor-driven hand grinder with an eccentric drive
US5018314A (en) 1989-06-08 1991-05-28 Makita Electric Works, Ltd. Sander
IL91283A0 (en) * 1989-08-11 1990-03-19 Gerard O Reilly Grinding tool and spacer assembly for use therein
DE3942301C1 (en) * 1989-12-21 1991-02-14 Robert Bosch Gmbh, 7000 Stuttgart, De
US5332098A (en) * 1991-06-24 1994-07-26 Fisher Tool Co., Inc. Portable preparation tool kit for automobile body work
DE4137924C2 (en) * 1991-11-18 1997-12-04 Schaudt Maschinenbau Gmbh Method and device for numerically controlled grinding of cams of a camshaft
DE4205977A1 (en) * 1992-02-27 1993-09-02 Bosch Gmbh Robert GRINDING PLATE FROM MULTIPLE MATERIAL LAYERS
DE4206022C2 (en) 1992-02-27 1997-07-03 Man Nutzfahrzeuge Ag Impact device for commercial vehicles
DE4233728A1 (en) * 1992-10-07 1994-04-14 Bosch Gmbh Robert Eccentric disc grinder
US6206771B1 (en) * 1999-01-25 2001-03-27 Dynabrade, Inc. Balancer for orbital abrading machine
DE19941620A1 (en) * 1999-09-01 2001-03-08 Bosch Gmbh Robert Hand tool
US6494772B1 (en) * 1999-11-30 2002-12-17 Roger W. Barnes Floor conditioning system
US6368202B1 (en) * 2000-10-18 2002-04-09 Richard A. Kaiser Rotary finishing tool and method of making the same
US6905398B2 (en) * 2001-09-10 2005-06-14 Oriol, Inc. Chemical mechanical polishing tool, apparatus and method
US6974362B2 (en) * 2002-05-14 2005-12-13 Skf Autobalance Systems Ab System and method for automatically compensating for unbalanced resistance forces
DE10357145A1 (en) * 2003-12-06 2005-06-30 Robert Bosch Gmbh Hand grinder, mounting flange for a grinding tool and balancing unit
US7022002B2 (en) * 2004-03-03 2006-04-04 Dynabrade, Inc. Modular counterweight apparatus for an orbital abrading machine
DE102004035859A1 (en) 2004-07-23 2006-02-16 Robert Bosch Gmbh Device with at least two balance weights
DE102005014045A1 (en) 2005-03-23 2006-09-28 Robert Bosch Gmbh Hand tool with a sanding plate
US7153199B1 (en) * 2005-10-07 2006-12-26 Dynabrade, Inc. Light-weight modular counterweight apparatus for an orbital abrading machine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008098637A1 *

Also Published As

Publication number Publication date
DE102007007787A1 (en) 2008-08-21
US8113921B2 (en) 2012-02-14
ATE502726T1 (en) 2011-04-15
WO2008098637A1 (en) 2008-08-21
RU2009134314A (en) 2011-03-27
US20090209186A1 (en) 2009-08-20
CN101605631A (en) 2009-12-16
EP2125289B1 (en) 2011-03-23
DE502007006813D1 (en) 2011-05-05
RU2461454C2 (en) 2012-09-20

Similar Documents

Publication Publication Date Title
EP2125289B1 (en) Tool set for an eccentric grinding machine
US6699112B2 (en) Abrasive body and abrasive means for an electric grinding tool, and electric grinding tool
EP2585253B1 (en) Grinding tool for the simultaneous planing and grinding of floors
DE19845166B4 (en) Rotary tool in the embodiment of a ring disc for surface processing
WO2008049458A1 (en) Electric hand-held machine tool for carrying out grinding work, in particular an orbital sander
DE20023967U1 (en) Electric hand grinder, in particular eccentric grinder
DE19820873A1 (en) Electric hand tool esp. for use in grinding and/or sanding
EP2052813A1 (en) Plate grinder and grind plate for a plate grinder
DE2604233A1 (en) SANDING OR POLISHING MACHINE WITH SUCTION
WO2019063044A1 (en) Grinding and/or cutting tool and method for grinding and/or cutting
DE102009054283A1 (en) Tellerschleifmaschine
DE19617478A1 (en) Hand grinder
EP1120198A2 (en) Grinding tool, machine using the same and method using this tool for machining workpieces
US11697186B2 (en) Abrasive article
US6811475B2 (en) Surface finishing pad
EP1908554B1 (en) Grinding plate for vacuum fixation of grinding material
DE102006010884B4 (en) Floor sander
DE102008051740B3 (en) Parquet edge grinding machine
DE19729199A1 (en) Floor processing machine, e.g. for grinding, cleaning and polishing wood, stone and plastic floors
DE2316957A1 (en) DEVICE FOR SANDING FLAT AND / OR SLIGHTLY CURVED SURFACES
DE4009876A1 (en) HAND MACHINE TOOL WITH GRINDING PLATE
DE20221899U1 (en) fine grinding machine
DE20220969U1 (en) Tool holder for machining mineral surfaces e.g. stone floors fits on rotary drive support plate and is fitted with machining tool made from polycrystalline diamond set in socket on tool holder
US20160074999A1 (en) Abrasive tools and methods of making same
DE102016211966A1 (en) Abrasive holding device for a hand tool

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: 20090916

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

17Q First examination report despatched

Effective date: 20100119

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RTI1 Title (correction)

Free format text: TOOL SET FOR AN ECCENTRIC GRINDING MACHINE

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

REF Corresponds to:

Ref document number: 502007006813

Country of ref document: DE

Date of ref document: 20110505

Kind code of ref document: P

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502007006813

Country of ref document: DE

Effective date: 20110505

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20110323

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

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: 20110323

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: 20110323

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: 20110323

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: 20110624

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20110323

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

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: 20110623

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: 20110323

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: 20110323

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: 20110323

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: 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: 20110725

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: 20110323

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

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: 20110323

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: 20110323

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: 20110323

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: 20110704

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: 20110723

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

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: 20110323

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: 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: 20110323

26N No opposition filed

Effective date: 20111227

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

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: 20110323

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: 20110323

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502007006813

Country of ref document: DE

Effective date: 20111227

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: 20110323

BERE Be: lapsed

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

Effective date: 20111231

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: 20111231

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: CH

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

Effective date: 20111231

Ref country code: BE

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

Effective date: 20111231

Ref country code: LI

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

Effective date: 20111231

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: 20110323

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: 20111219

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: 20110323

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: 20110323

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 502726

Country of ref document: AT

Kind code of ref document: T

Effective date: 20121219

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: 20121219

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

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

Ref country code: GB

Payment date: 20161222

Year of fee payment: 10

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 11

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

Effective date: 20171219

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: 20171219

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

Ref country code: FR

Payment date: 20191218

Year of fee payment: 13

REG Reference to a national code

Ref country code: DE

Ref legal event code: R084

Ref document number: 502007006813

Country of ref document: DE

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: 20201231

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

Ref country code: DE

Payment date: 20240227

Year of fee payment: 17