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WO2011061104A1 - Disc grinder - Google Patents

Disc grinder Download PDF

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Publication number
WO2011061104A1
WO2011061104A1 PCT/EP2010/067199 EP2010067199W WO2011061104A1 WO 2011061104 A1 WO2011061104 A1 WO 2011061104A1 EP 2010067199 W EP2010067199 W EP 2010067199W WO 2011061104 A1 WO2011061104 A1 WO 2011061104A1
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WO
WIPO (PCT)
Prior art keywords
disc
sanding
grinding
drive shaft
springs
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.)
Ceased
Application number
PCT/EP2010/067199
Other languages
German (de)
French (fr)
Inventor
Leo Lustig
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO2011061104A1 publication Critical patent/WO2011061104A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • B24B23/028Angle tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00Component parts such as frames, beds, carriages, headstocks
    • B24B41/007Weight compensation; Temperature compensation; Vibration damping
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/10Single-purpose machines or devices
    • B24B7/18Single-purpose machines or devices for grinding floorings, walls, ceilings or the like
    • B24B7/186Single-purpose machines or devices for grinding floorings, walls, ceilings or the like with disc-type tools

Definitions

  • the invention relates to disc sander in any kind.
  • the sanding disc of a disc sander encounters bumps and protrusions on the grinding surface during the grinding process, which leads to vibrations. Furthermore, each sanding plate has a more or less large flattening that causes vibrations.
  • the sanding discs of such machines although they contain some of the vibration on the foam plastic table, do contain some of the vibration, but not all. Vibrations cause grinding marks. They worsen the sanding picture. In addition, vibrations shorten the service life of a grinding wheel, as their abrasive grains are more stressed by the vibrations and quickly lose their cutting force.
  • the grinding wheel (1 1) is vertically movable against spring action and on all sides at least by a few degrees tilted mounted on the machine.
  • the grinding pressure on the grinding wheel (1 1) is adjustable.
  • the bearing sleeve (10) is articulated on the pressure arm (12) and presses the grinding wheel (1 1) on the spring (13) on the ground.
  • the grinding pressure is centrally along the motor shaft (7), which is why the tiltable grinding wheel (1 1) rests completely on the ground.
  • a one-sided support of the grinding wheel (1 1) on the grinding surface, as for example in angle grinders usual, is not possible with this machine.
  • the spring (13) is relieved, so that the contact pressure of the grinding wheel (1 1) on the ground is relatively low and can overcome the grossest bumps.
  • the grinding pressure is increased.
  • Such a procedure is counterproductive and against any technical logic. It is usual that the rough grinding with high grinding pressure takes place in order to achieve a high removal rate for the quick removal of the overhangs.
  • the grinding pressure is reduced because of this Slip of smoothing and refinement of the grinding surface is used. The above machine is unfamiliar to practice and therefore could not prevail on the market.
  • the object of the invention is to improve a disc sander, for example, an angle grinder so that its sanding pad has no more chipping, that the machine gets a high degree of smoothness and thus vibration-free grinding, in order to achieve a scoring-free and ream-free grinding surface.
  • the sanding pad (2) of the disk grinding machine according to the invention is mounted rotatably and pivotably on a joint bearing (8) mounted on the drive shaft (3).
  • a joint bearing (8) mounted on the drive shaft (3).
  • On the drive shaft (3) a drive flange (5) is arranged rotationally fixed.
  • springs (6/20) are arranged axially.
  • the springs are designed as tension springs (6), which are arranged approximately parallel to the drive shaft (3).
  • the interaction of joint bearing (8) and tension springs (6) gives the sanding pad (2) a total adaptability to the sanding surface.
  • the sanding pad (2) has an all-sided spring-mounted pivoting.
  • the spring-loaded sanding pad (2) no longer has a flat lay and swallows the vibrations, which gives the sanding machine a very smooth running. Furthermore, the sprung sanding pad (2) can not tilt, which avoids grinding approaches.
  • the foam covering of a sanding pad comparable to the tires of car tires, only absorbs part of the vibrations during the sanding process.
  • the present invention in the form of the sprung Tel lerschl iffs is also based on a Suspension system.
  • the sanding pad (2) is suspended all around eight tension springs (6), so that it can yield and collapse when encountering protrusions or irregularities on the grinding surface, in contrast to a sanding plate rigidly connected to the drive shaft.
  • a disc sander of this kind has a very quiet running, free of vibration.
  • the sprung plate grinding enables perfect grinding results and exceptionally high-quality grinding surfaces.
  • the grinding wheels (19) are spared and have a longer service life than in a rigidly connected to the drive shaft sanding pad.
  • the tension springs (6) have in addition to the elastic balance that they give the sanding pad (2), another function. They drive the sanding pad (2) by transmitting the torque from the drive flange (5) to the plate flange (7) and thus to the sanding pad (2). It is an elastic drive that allows the pivoting of the grinding plate (2).
  • FIG. 6 instead of the tension springs (6) and compression springs (20) between drive flange (5) and plate flange (7) to be clamped.
  • driving pins (21) within the compression springs (20) are arranged, which transmit the torque from the drive flange (5) on the plate flange (7) and drive the sanding pad (2).
  • the M takers pins (21) are screwed on the one hand on the drive flange (5) and project on the other hand in the plate flange (7) located holes (22) into it, wherein the holes (22) are larger in diameter than the driving pins (21).
  • the springs (6/20) could be adjustable in their tension or adjustable.
  • the elasticity of the sanding pad (2) can be adjusted in various stages from “soft” to “hard”, depending on the needs of the sanding object.
  • the present invention is both in an angle grinder (1) with a rotating sanding pad (2) possible as well as in an angle grinder whose sanding pad makes rotational and eccentric movements.
  • the present invention could also be designed as a mobile parquet edge grinding machine.
  • a mobile parquet edge grinding machine Such a machine is shown in FIGS. 3 and 4.
  • the sanding disc of the mobile parquet edge sanding machine is driven by a motor via a V-belt (23). Further, the sanding pad is rotatably mounted and pivotally mounted on a gel mounted on the Antriebswel le.
  • a V-belt pulley (24) is arranged rotationally fixed, wherein between V-belt pulley (24) and sanding plate springs (6/20) are arranged axially. Due to this design, the parquet edge sanding machine gets a very smooth running, as numerous bumps are found at the edges of parquet surfaces.
  • the parquet edge grinding machine according to the invention produces better surfaces.
  • the handle and leadership of such a machine is substantially improved in contrast to known edge grinders.
  • the present invention could also be embodied as a single disc sanding machine for floor sanding, with a sanding pad of about 300 to 400 mm in diameter.
  • a single disc sanding machine for floor sanding, with a sanding pad of about 300 to 400 mm in diameter.
  • the sanding pad of such a machine lies fully on the floor, while the two wheels are lifted during the grinding process, that is, out of service.
  • a screed floor or similar subfloor has many bumps, these irregularities are transmitted to the machine, which makes their handling and guidance extremely difficult.
  • the sprung pivotability of the grinding disc takes into account the unevenness of a subfloor and facilitates the leadership of the single-disc grinder to a decisive extent.
  • FIG. 2 perspective drawing of the angle grinder. 1
  • FIG. 3 Perspective drawing of a parquet edge grinding machine
  • FIG. 5 perspective drawing of a single-disc sanding machine for floors
  • the Winkelschleifmasch ine (1) consists of a motor (1 8), the keltrieb via a Win the sanding pad (2) drives.
  • the sanding disc (19) is attached to the sanding pad (2) with the Velcro fastener.
  • On the drive shaft (3) the connection flange (4) is screwed. The latter is not mentioned separately as an extension of the drive shaft (3) in the claims.
  • the spherical plain bearing (8) is secured on the connecting lug (4) by means of the headshield (1 6) and the countersunk screw (17).
  • the joint bearing (8) is mounted on the plate flange (7) and secured with the circlip (1 5).
  • the sanding pad (2) is fastened to the plate flange (7) with eight cheese head screws (12).
  • the drive flange (5) is fastened with four screws (9).
  • the tension springs (6) are clamped on Rad ial grub screws (1 1) on the drive flange (5) u nd rad ial grub screws (13) on the plate flange (7).
  • a sealing ring (1 0) is arranged, which prevents the ingress of grinding dust in the region of the joint bearing (8).

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

Abstract

The invention relates to a disc grinder, for example, the grinding disc thereof being supported on a drive shaft and driven by a motor. During the grinding process, the grinding disc encounters uneven areas on the grinding surfaces, leading to vibrations. The aim of the invention is to improve such a disc grinder, such that the grinding disc thereof no longer has any axial runout, so that the machine runs very smoothly and thereby without vibration, in order to achieve a ground surface free of grooves and lap marks. Said aim is achieved in that the grinding disc (2) of such an angle grinder (1) is rotationally and pivotally supported on a pivoting bearing (8) mounted on the drive shaft (3), and that a drive flange (5) is rotationally fixedly disposed on the drive shaft (3), and that tensile springs (6) are axially disposed between the drive flange (5) and grinding disc (2).

Description

Tellerschleifmaschine  Tellerschleifmaschine

Beschreibung description

Die Erfindung betrifft Tellerschleifmaschinen in jederlei Art. The invention relates to disc sander in any kind.

Stand der Technik State of the art

Der Schleifteller einer Tellerschleifmaschine, beispielsweise eines Winkelschleifers, trifft beim Schleifprozess auf Unebenheiten und Überstände auf der Schleiffläche, was zu Vibrationen führt. Ferner hat jeder Schleifteller einen mehr oder weniger großen Planschlag, der Vibrationen verursacht. Die Schleifteller solcher Maschinen n e h m en d u rch e i n e n Sch a u m stoffbe l ag od er i n Fo rm e i n es el astischen Kunststofftellers zwar einen Teil der Vibrationen auf, jedoch nicht alle. Vibrationen verursachen Schleifriefen. Sie verschlechtern das Schleifbild. Vibrationen verkürzen außerdem die Standzeit einer Schleifscheibe, da deren Schleifkörner durch die Vibrationen stärker beansprucht werden und rasch ihre Schneidkraft verlieren. The sanding disc of a disc sander, for example an angle grinder, encounters bumps and protrusions on the grinding surface during the grinding process, which leads to vibrations. Furthermore, each sanding plate has a more or less large flattening that causes vibrations. The sanding discs of such machines, although they contain some of the vibration on the foam plastic table, do contain some of the vibration, but not all. Vibrations cause grinding marks. They worsen the sanding picture. In addition, vibrations shorten the service life of a grinding wheel, as their abrasive grains are more stressed by the vibrations and quickly lose their cutting force.

Bei der Parkettschleifmaschine gemäß DE 19 22 030 ist die Schleifscheibe (1 1 ) gegen Federwirkung höhenbeweglich und allseitig zumindest um wenige Grade neigbar an der Maschine gelagert. Der Schleifdruck auf die Schleifscheibe (1 1 ) ist einstellbar. Die Lagerhülse (10) ist am Druckarm (12) angelenkt und drückt die Schleifscheibe (1 1 ) über die Feder (13) auf den Boden. Der Schleifdruck erfolgt zentral entlang der Motorwelle (7), weshalb die neigbare Schleifscheibe (1 1 ) vollflächig auf dem Boden aufliegt. Eine einseitige Auflage der Schleifscheibe (1 1 ) auf die Schleiffläche, wie zum Beispiel bei Winkelschleifern üblich, ist mit dieser Maschine nicht möglich. In the parquet sanding machine according to DE 19 22 030, the grinding wheel (1 1) is vertically movable against spring action and on all sides at least by a few degrees tilted mounted on the machine. The grinding pressure on the grinding wheel (1 1) is adjustable. The bearing sleeve (10) is articulated on the pressure arm (12) and presses the grinding wheel (1 1) on the spring (13) on the ground. The grinding pressure is centrally along the motor shaft (7), which is why the tiltable grinding wheel (1 1) rests completely on the ground. A one-sided support of the grinding wheel (1 1) on the grinding surface, as for example in angle grinders usual, is not possible with this machine.

Zu Beginn der Schleifarbeit wird die Feder (13) entlastet, sodass der Anpressdruck der Schleifscheibe (1 1 ) auf den Boden verhältnismäßig gering ist und die gröbsten Unebenheiten zu überwinden vermag. Mit zunehmender Schleifarbeit wird der Schleifdruck erhöht. Eine solche Vorgehensweise ist kontraproduktiv und gegen jede schleiftechnische Logik. Üblich ist, dass der Grobschliff mit hohem Schleifdruck erfolgt, um einen starken Abtrag zur schnellen Beseitigung der Überstände zu erzielen . Beim folgenden Feinschliff wird der Schleifdruck reduziert, da dieser Schleifgang der Glättung und Verfeinerung der Schleiffläche dient. Obige Maschine ist praxisfremd und konnte sich daher am Markt auch nicht durchsetzen. At the beginning of the grinding work, the spring (13) is relieved, so that the contact pressure of the grinding wheel (1 1) on the ground is relatively low and can overcome the grossest bumps. With increasing grinding work, the grinding pressure is increased. Such a procedure is counterproductive and against any technical logic. It is usual that the rough grinding with high grinding pressure takes place in order to achieve a high removal rate for the quick removal of the overhangs. During the following fine grinding, the grinding pressure is reduced because of this Slip of smoothing and refinement of the grinding surface is used. The above machine is unfamiliar to practice and therefore could not prevail on the market.

Aufgabenstellung task

Darstellung der Erfindung  Presentation of the invention

Aufgabe der Erfindung ist es, eine Tellerschleifmaschine, beispielsweise einen Winkelschleifer so zu verbessern, dass dessen Schleifteller keinen Planschlag mehr hat, dass die Maschine eine hohe Laufruhe bekommt und dadurch vibrationsfrei schleift, um eine riefenfreie und ansatzfreie Schleiffläche zu erzielen. The object of the invention is to improve a disc sander, for example, an angle grinder so that its sanding pad has no more chipping, that the machine gets a high degree of smoothness and thus vibration-free grinding, in order to achieve a scoring-free and ream-free grinding surface.

Erfindungsgemäß erreicht wird d ies bei einer Schleifmaschine der eingangs genannten Art durch die kennzeichnenden Merkmale des Patentanspruchs 1 . According to the invention, this is achieved in a grinding machine of the type mentioned at the outset by the characterizing features of patent claim 1.

Der Schleifteller (2) der erfindungsgemäßen Tellerschleifmaschine ist auf einem an der Antriebswelle (3) montierten Gelenklager (8) dreh- und schwenkbar gelagert. An der Antriebswelle (3) ist ein Antriebsflansch (5) drehfest angeordnet. Zwischen Antriebsflansch (5) und Schleifteller (2) sind Federn (6 / 20) axial angeordnet. Vorzugsweise sind die Federn als Zugfedern (6) ausgebildet, die etwa parallel zur Antriebswelle (3) angeordnet sind. Das Zusammenspiel von Gelenklager (8) und Zugfedern (6) gibt dem Schleifteller (2) eine totale Anpassungsfähigkeit an die Schleiffläche. Der Schleifteller (2) hat eine allseitig gefederte Schwenkbarkeit. Der gefederte Schleifteller (2) hat keinen Planschlag mehr und schluckt die Vibrationen, wodurch die Schleifmaschine eine hohe Laufruhe bekommt. Ferner kann der gefederte Schleifteller (2) nicht verkanten, wodurch Schleifansätze vermieden werden. The sanding pad (2) of the disk grinding machine according to the invention is mounted rotatably and pivotably on a joint bearing (8) mounted on the drive shaft (3). On the drive shaft (3) a drive flange (5) is arranged rotationally fixed. Between drive flange (5) and sanding plate (2) springs (6/20) are arranged axially. Preferably, the springs are designed as tension springs (6), which are arranged approximately parallel to the drive shaft (3). The interaction of joint bearing (8) and tension springs (6) gives the sanding pad (2) a total adaptability to the sanding surface. The sanding pad (2) has an all-sided spring-mounted pivoting. The spring-loaded sanding pad (2) no longer has a flat lay and swallows the vibrations, which gives the sanding machine a very smooth running. Furthermore, the sprung sanding pad (2) can not tilt, which avoids grinding approaches.

Man kann eine Tellerschleifmaschine mit einem Auto vergleichen. Die Reifen (Pneus) eines Autos schlucken nur einen Teil der Vibrationen, die durch die Unebenheiten einer Straße entstehen. Die entscheidende Dämpfung eines Autos erfolgt über ein ausgeklügeltes Federungssystem bei der Radaufhängung. You can compare a disc sander with a car. The tires (tires) of a car swallow only a part of the vibrations caused by the unevenness of a road. The decisive damping of a car via a sophisticated suspension system in the suspension.

Der Schaumstoffbelag eines Schleiftellers, vergleich bar m it den Pneus der Autoreifen, schluckt nur einen Teil der Vibrationen beim Schleifprozess. Vorliegende Erfindung in Form des gefederten Tel lerschl iffs basiert ebenfalls auf einem Federungssystem. Der Schleifteller (2) ist ringsum an acht Zugfedern (6) aufgehängt, sodass er beim Antreffen von Überständen oder Unregelmäßigkeiten auf der Schleiffläche nachgeben und einfedern kann, im Gegensatz zu einem mit der Antriebswelle starr verbundenen Schleifteller. Eine Tellerschleifmaschine dieser Art hat einen äußerst ruhigen Lauf, frei von Vibrationen. Der gefederte Tellerschliff ermöglicht perfekte Schleifergebnisse und außerordentlich hochwertige Schleifflächen. The foam covering of a sanding pad, comparable to the tires of car tires, only absorbs part of the vibrations during the sanding process. The present invention in the form of the sprung Tel lerschl iffs is also based on a Suspension system. The sanding pad (2) is suspended all around eight tension springs (6), so that it can yield and collapse when encountering protrusions or irregularities on the grinding surface, in contrast to a sanding plate rigidly connected to the drive shaft. A disc sander of this kind has a very quiet running, free of vibration. The sprung plate grinding enables perfect grinding results and exceptionally high-quality grinding surfaces.

Durch den vibrationsfreien Lauf des gefederten Schleiftellers (2) werden die Schleifscheiben (19) geschont und haben eine höhere Standzeit als bei einem mit der Antriebswelle starr verbundenen Schleifteller. Due to the vibration-free running of the sprung grinding disc (2), the grinding wheels (19) are spared and have a longer service life than in a rigidly connected to the drive shaft sanding pad.

Die Zugfedern (6) haben neben der elastischen Balance, die sie dem Schleifteller (2) geben, noch eine weitere Funktion. Sie treiben den Schleifteller (2) an, indem sie das Drehmoment vom Antriebsflansch (5) auf den Tellerflansch (7) und damit auf den Schleifteller (2) übertragen. Es ist ein elastischer Antrieb, der die Schwenkbarkeit des Schleiftellers (2) ermöglicht. The tension springs (6) have in addition to the elastic balance that they give the sanding pad (2), another function. They drive the sanding pad (2) by transmitting the torque from the drive flange (5) to the plate flange (7) and thus to the sanding pad (2). It is an elastic drive that allows the pivoting of the grinding plate (2).

In weiterer Offenbarung könnten gemäß Fig . 6 statt der Zugfedern (6) auch Druckfedern (20) zwischen Antriebsflansch (5) und Tellerflansch (7) eingespannt sein. In diesem Fall sind Mitnehmerstifte (21 ) innerhalb der Druckfedern (20) angeordnet, die das Drehmoment vom Antriebsflansch (5) auf den Tellerflansch (7) übertragen und den Schleifteller (2) antreiben . Die M itnehmerstifte (21 ) sind einerseits am Antriebsflansch (5) verschraubt und ragen andererseits in am Tellerflansch (7) befindliche Bohrungen (22) hinein, wobei die Bohrungen (22) im Durchmesser größer sind als die Mitnehmerstifte (21 ). Dadurch wird die Schwenkbarkeit des Schleiftellers (2) gewährleistet. In further disclosure, according to FIG. 6 instead of the tension springs (6) and compression springs (20) between drive flange (5) and plate flange (7) to be clamped. In this case, driving pins (21) within the compression springs (20) are arranged, which transmit the torque from the drive flange (5) on the plate flange (7) and drive the sanding pad (2). The M takers pins (21) are screwed on the one hand on the drive flange (5) and project on the other hand in the plate flange (7) located holes (22) into it, wherein the holes (22) are larger in diameter than the driving pins (21). As a result, the pivotability of the sanding plate (2) is ensured.

In weiterer Offenbarung könnten die Federn (6 / 20) in ihrer Spannung verstellbar beziehungsweise einstellbar sein. Dadurch lässt sich die Elastizität des Schleiftellers (2) in verschiedenen Stufen von„Weich" bis„Hart" einstellen, je nach Bedarf des Schleifobjekts. Vorliegende Erfindung ist sowohl bei einer Winkelschleifmaschine (1 ) mit einem rotierenden Schleifteller (2) möglich als auch bei einer Winkelschleifmaschine, deren Schleifteller Rotations- und Exzenterbewegungen macht. In another disclosure, the springs (6/20) could be adjustable in their tension or adjustable. As a result, the elasticity of the sanding pad (2) can be adjusted in various stages from "soft" to "hard", depending on the needs of the sanding object. The present invention is both in an angle grinder (1) with a rotating sanding pad (2) possible as well as in an angle grinder whose sanding pad makes rotational and eccentric movements.

In weiterer Offenbarung könnte vorliegende Erfindung auch als fahrbare Parkett- Randschleifmaschine ausgebildet sein. Eine solche Maschine ist auf Fig. 3 und 4 dargestellt. Der Schleifteller der fahrbaren Parkett-Randschleifmaschine wird von einem Motor über einen Keilriemen (23) angetrieben. Ferner ist der Schleifteller auf einem an der Antriebswel le montierten Gelen klager dreh- und schwenkbar angeordnet. An der Antriebswelle ist eine Keilriemenscheibe (24) drehfest angeordnet, wobei zwischen Keilriemenscheibe (24) und Schleifteller Federn (6 / 20) axial angeordnet sind. Durch diese Ausgestaltung bekommt die Parkett- Randschleifmaschine eine hohe Laufruhe, da an den Rändern von Parkettflächen zahlreiche Unebenheiten angetroffen werden. Die erfindungsgemäße Parkett- Randschleifmaschine produziert bessere Flächen. Außerdem ist die Handhabe und Führung einer solchen Maschine wesentlich verbessert im Gegensatz zu bekannten Randschleifern. In further disclosure, the present invention could also be designed as a mobile parquet edge grinding machine. Such a machine is shown in FIGS. 3 and 4. The sanding disc of the mobile parquet edge sanding machine is driven by a motor via a V-belt (23). Further, the sanding pad is rotatably mounted and pivotally mounted on a gel mounted on the Antriebswel le. On the drive shaft, a V-belt pulley (24) is arranged rotationally fixed, wherein between V-belt pulley (24) and sanding plate springs (6/20) are arranged axially. Due to this design, the parquet edge sanding machine gets a very smooth running, as numerous bumps are found at the edges of parquet surfaces. The parquet edge grinding machine according to the invention produces better surfaces. In addition, the handle and leadership of such a machine is substantially improved in contrast to known edge grinders.

In weiterer Offenbarung könnte vorliegende Erfindung auch als Einscheiben- Schleifmaschine für den Fußbodenschliff ausgebildet sein, mit einem Schleifteller von etwa 300 bis 400 mm Durchmesser. Eine solche Maschine ist auf Fig. 5 dargestellt. Der Schleifteller einer solchen Maschine liegt vollflächig auf dem Fußboden auf, während die beiden Laufräder beim Schleifprozess abgehoben, das heißt außer Betrieb sind. Da ein Estrichboden oder ähnlicher Unterboden zahlreiche Unebenheiten aufweist, übertragen sich diese Unregelmäßigkeiten auf die Maschine, was deren Handhabe und Führung äußerst schwierig macht. Die gefederte Schwenkbarkeit des Schleiftellers berücksichtigt die Unebenheiten eines Unterbodens und erleichtert die Führung der Einscheiben-Schleifmaschine in entscheidendem Maße. Ausführungsbeispiel In further disclosure, the present invention could also be embodied as a single disc sanding machine for floor sanding, with a sanding pad of about 300 to 400 mm in diameter. Such a machine is shown in FIG. The sanding pad of such a machine lies fully on the floor, while the two wheels are lifted during the grinding process, that is, out of service. As a screed floor or similar subfloor has many bumps, these irregularities are transmitted to the machine, which makes their handling and guidance extremely difficult. The sprung pivotability of the grinding disc takes into account the unevenness of a subfloor and facilitates the leadership of the single-disc grinder to a decisive extent. embodiment

Kurze Beschreibung der Zeichnungen  Brief description of the drawings

Fig. 1 Schnitt-Zeichnung des Schleifkopfes mit Zugfedern 6 Fig. 1 sectional drawing of the grinding head with tension springs. 6

Fig. 2 Perspektiv-Zeichnung der Winkelschleifmaschine 1  Fig. 2 perspective drawing of the angle grinder. 1

Fig. 3 Perspektiv-Zeichnung einer Parkett-Randschleifmaschine  Fig. 3 Perspective drawing of a parquet edge grinding machine

Fig. 4 Schnitt-Zeichnung des Schleifkopfes der Parkett-Randschleifmaschine  Fig. 4 sectional drawing of the grinding head of the parquet edge grinding machine

Fig. 5 Perspektiv-Zeichnung einer Einscheiben-Schleifmaschine für Fußböden  Fig. 5 perspective drawing of a single-disc sanding machine for floors

Fig. 6 Schnittzeichnung des Schleifkopfes mit Druckfedern 20  6 is a sectional view of the grinding head with compression springs 20th

Die Winkelschleifmasch ine (1 ) besteht aus einem Motor (1 8), der über einen Win keltrieb den Schleifteller (2) antreibt. Auf dem Schleiftel ler (2) ist m ittels Klettverschluss die Schleifscheibe (19) befestigt. Auf der Antriebswelle (3) ist der Anschlussflansch (4) verschraubt. Letzterer ist als Verlängerung der Antriebswelle (3) in den Patentansprüchen nicht extra erwähnt. Das Gelenklager (8) ist auf dem An sch l u ssfl an sch (4) a ng eord net u nd m it der Kopfsche i be ( 1 6 ) u nd d er Senkschraube (17) gesichert. Das Gelenklager (8) ist am Tellerflansch (7) gelagert und m it dem Sicherungsring (1 5) gesichert. Der Schleifteller (2) ist mit acht Zylinderschrauben (12) am Tellerflansch (7) befestigt. Am Anschlussflansch (4) ist der Antriebsflansch (5) mit vier Schrauben (9) befestigt. Die Zugfedern (6) sind an zwischen rad ialen Gewindestiften (1 1 ) am Antriebsflansch (5) u nd rad ialen Gewindestiften (13) am Tellerflansch (7) eingespannt. Zwischen Antriebsflansch (5) und Tellerflansch (7) ist ein Dichtring (1 0) angeordnet, der das Eindringen von Schleifstaub in den Bereich des Gelenklagers (8) verhindert. The Winkelschleifmasch ine (1) consists of a motor (1 8), the keltrieb via a Win the sanding pad (2) drives. The sanding disc (19) is attached to the sanding pad (2) with the Velcro fastener. On the drive shaft (3), the connection flange (4) is screwed. The latter is not mentioned separately as an extension of the drive shaft (3) in the claims. The spherical plain bearing (8) is secured on the connecting lug (4) by means of the headshield (1 6) and the countersunk screw (17). The joint bearing (8) is mounted on the plate flange (7) and secured with the circlip (1 5). The sanding pad (2) is fastened to the plate flange (7) with eight cheese head screws (12). At the connection flange (4) the drive flange (5) is fastened with four screws (9). The tension springs (6) are clamped on Rad ial grub screws (1 1) on the drive flange (5) u nd rad ial grub screws (13) on the plate flange (7). Between the drive flange (5) and plate flange (7), a sealing ring (1 0) is arranged, which prevents the ingress of grinding dust in the region of the joint bearing (8).

Bezugszeichenliste Tellerschleifmaschine List of Reference plate grinding machine

Schleifteller sanding pad

Antriebswelle drive shaft

Anschlussflansch flange

Antriebsflansch drive flange

Zugfeder mainspring

Tellerflansch Tellerflansch

Gelenklager Spherical plain bearings

Schraube screw

Dichtring seal

Gewindestift Set screw

Zylinderschraube cylinder head screw

Gewindestift Set screw

Distanzring spacer

Sicherungsring circlip

Kopfscheibe headwheel

Senkschraube Senkschraube

Motor engine

Schleifscheibe grinding wheel

Druckfeder compression spring

Mitnehmerstift Carrier pin

Bohrung drilling

Keilriemen fan belt

Keilriemenscheibe pulley

Claims

Patentansprüche claims 1 . Tellerschleifmaschine mit einem durch einen Motor antreibbaren Schleifteller an einer Antriebswelle, dadurch gekennzeichnet, dass der Schleifteller (2) auf einem an der Antriebswelle (3) montierten Gelenklager (8) dreh- und schwenkbar gelagert ist, an der Antriebswelle (3) ein Antriebsflansch (5) drehfest angeordnet ist und zwischen Antriebsflansch (5) und Schleifteller (2) Federn (6 / 20) axial angeordnet sind. 1 . Disc sander with a drivable by a motor grinding disc on a drive shaft, characterized in that the sanding pad (2) on a drive shaft (3) mounted joint bearing (8) is rotatably and pivotally mounted on the drive shaft (3) has a drive flange ( 5) is arranged rotationally fixed and between the drive flange (5) and sanding plate (2) springs (6/20) are arranged axially. 2. Tellerschleifmaschine nach Anspruch 1 , dadurch gekennzeichnet, dass die Federn als Zugfedern (6) ausgebildet sind, die etwa parallel zur Antriebswelle (3) angeordnet sind. 2. disc sander according to claim 1, characterized in that the springs are designed as tension springs (6) which are arranged approximately parallel to the drive shaft (3). 3. Tellerschleifmaschine nach den Ansprüchen 1 u. 2, dadurch gekennzeichnet, dass die Zugfedern (6) an zwischen radialen Gewindestiften (1 1 ) am Antriebsflansch (5) und radialen Gewindestiften (13) am Schleifteller (2) eingespannt sind. 3. disc sander according to claims 1 u. 2, characterized in that the tension springs (6) are clamped on between radial grub screws (1 1) on the drive flange (5) and radial grub screws (13) on the sanding disc (2). 4. Tellerschleifmaschine nach Anspruch 1 , dadurch gekennzeichnet, dass die Federn als Druckfedern (20) ausgebildet sind, die etwa parallel zur Antriebswelle (3) angeordnet und zwischen Antriebsflansch (5) und Tellerflansch (7) eingespannt sind. 4. disc sander according to claim 1, characterized in that the springs as compression springs (20) are formed, which are arranged approximately parallel to the drive shaft (3) and between drive flange (5) and plate flange (7) are clamped. 5. Tellerschleifmaschine nach Anspruch 4, dadurch gekennzeichnet, dass innerhalb der Druckfedern (20) Mitnehmerstifte (21 ) angeordnet sind, die einerseits am Antriebsflansch (5) verschraubt sind und die andererseits in am Tellerflansch (7) befindliche Bohrungen (22) hineinragen, wobei die Bohrungen (22) im Durchmesser größer sind als die Mitnehmerstifte (21 ). 5. disc grinder according to claim 4, characterized in that within the compression springs (20) driving pins (21) are arranged, which are screwed on the one hand on the drive flange (5) and on the other hand in the plate flange (7) located holes (22) protrude, wherein the holes (22) are larger in diameter than the driving pins (21). 6. Tellerschleifmaschine nach den Ansprüchen 1 bis 5, dadurch gekennzeichnet, dass das Gelenklager (8) an einem Tellerflansch (7) gelagert ist, an dem die den Schleifteller (2) haltenden und an die Federn (6) angeschlossenen Gewindestifte (13) angeordnet sind. 6. disc sander according to claims 1 to 5, characterized in that the joint bearing (8) is mounted on a plate flange (7), on which the grinding disc (2) holding and to the springs (6) connected threaded pins (13) are. 7. Tellerschleifmaschine nach den Ansprüchen 1 bis 6, dadurch gekennzeichnet, dass acht Zugfedern (6) vorgesehen sind. 7. disc sander according to claims 1 to 6, characterized in that eight tension springs (6) are provided. 8. Tellerschleifmaschine nach den Ansprüchen 1 bis 6, dadurch gekennzeichnet, dass acht Druckfedern (20) vorgesehen sind. 8. disc sander according to claims 1 to 6, characterized in that eight compression springs (20) are provided. 9. Tellerschleifmaschine nach den Ansprüchen 1 bis 8, gekennzeichnet durch die Ausbildung als Winkelschleifmaschine. 9. disc sander according to claims 1 to 8, characterized by the design as an angle grinder. 10. Tellerschleifmaschine nach den Ansprüchen 1 bis 8, dadurch gekennzeichnet, dass es eine fahrbare Parkett-Randschleifmaschine ist, deren Schleifteller von einem Motor über einen Keilriemen (23) angetrieben wird, dass der Schleifteller auf einem an der Antriebswelle montierten Gelenklager dreh- und schwenkbar angeordnet ist, an der Antriebswelle eine Keilriemenscheibe (24) drehfest angeordnet ist und zwischen Keilriemenscheibe (24) und Schleifteller Federn (6 / 20) axial angeordnet sind. 10. disc sander according to claims 1 to 8, characterized in that it is a mobile parquet edge grinding machine, the sanding disc is driven by a motor via a V-belt (23), that the sanding pad on a drive shaft mounted on the pivot bearing and rotatable is arranged on the drive shaft, a V-belt pulley (24) is arranged rotationally fixed and between V-belt pulley (24) and sanding plate springs (6/20) are arranged axially. 1 1 . Parkett-Randschleifmaschine nach Anspruch 10, dadurch gekennzeichnet, dass deren Schleifteller einen Durchmesser von etwa 125 bis 180 mm hat. 1 1. Parquet edge grinding machine according to claim 10, characterized in that the grinding disc has a diameter of about 125 to 180 mm. 12. Tellerschleifmaschine nach den Ansprüchen 1 bis 8, dadurch gekennzeichnet, dass es eine fahrbare Einscheiben-Schleifmaschine für Fußböden ist, deren Schleifteller einen Durchmesser von etwa 300 bis 400 mm hat, dass der Schleifteller auf einem an der Antriebswelle montierten Gelenklager dreh- und schwenkbar angeordnet ist, an der Antriebswelle ein Antriebsflansch drehfest angeordnet ist und zwischen Antriebsflansch und Schleifteller Federn (6 / 20) angeordnet sind. 12. Disc grinder according to claims 1 to 8, characterized in that it is a mobile single-disc sanding machine for floors, the sanding disc has a diameter of about 300 to 400 mm, that the sanding pad on a drive shaft mounted on the pivot bearing rotatable and pivotable is arranged on the drive shaft, a drive flange is rotatably disposed and between the drive flange and grinding plate springs (6/20) are arranged.
PCT/EP2010/067199 2009-11-23 2010-11-10 Disc grinder Ceased WO2011061104A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200910054283 DE102009054283B4 (en) 2009-11-23 2009-11-23 Tellerschleifmaschine
DE102009054283.3 2009-11-23

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WO2011061104A1 true WO2011061104A1 (en) 2011-05-26

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2886248A1 (en) * 2013-12-13 2015-06-24 Robert Bosch Gmbh Battery operated orbital sander with a rechargeable battery
CN108972261A (en) * 2018-08-02 2018-12-11 滁州市精美家电设备有限责任公司 A kind of grinding device of foaming die for refrigerator case body
EP3476535A1 (en) * 2017-10-26 2019-05-01 Wolff GmbH & Co. KG Floor grinding apparatus with dust-tight rings
CN110977706A (en) * 2019-12-17 2020-04-10 深圳丰发一诺科技有限公司 A polishing device with shock absorption function for metal tools
CN111002132A (en) * 2019-12-04 2020-04-14 陈小虎 Inner loop dust removal building wall adaptability grinding device
CN114800187A (en) * 2022-04-13 2022-07-29 黄荣 Curved surface polishing machine
CN116394090A (en) * 2023-03-22 2023-07-07 广东工科机电有限公司 Grinding and polishing device, grinding and polishing system, grinding and polishing process and application of grinding and polishing device
SE2450302A1 (en) * 2023-12-20 2025-06-21 Husqvarna Ab Tool holders for a power trowel

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DE202012100274U1 (en) 2012-01-26 2012-03-15 Einhell Germany Ag Hand tool
CN112388417B (en) * 2020-10-27 2022-07-22 广东博智林机器人有限公司 Polishing module and polishing robot comprising same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1922030A1 (en) 1969-04-30 1970-11-12 Werner Hartmann Parquet sanding machine
CN2060101U (en) * 1990-01-23 1990-08-08 四川省达县地区华兴机械厂 Spring direct-connected water mill machine
EP1985876A1 (en) * 2007-04-23 2008-10-29 HTC Sweden AB Grinding holder in a machining device
WO2010043521A1 (en) * 2008-10-15 2010-04-22 Leo Lustig Parquet edge grinding machine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2124705A (en) * 1935-03-21 1938-07-26 William O Locking Surfacing machine
US2993311A (en) * 1959-07-20 1961-07-25 Stanley Works Rotatable disc sander and the like

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1922030A1 (en) 1969-04-30 1970-11-12 Werner Hartmann Parquet sanding machine
CN2060101U (en) * 1990-01-23 1990-08-08 四川省达县地区华兴机械厂 Spring direct-connected water mill machine
EP1985876A1 (en) * 2007-04-23 2008-10-29 HTC Sweden AB Grinding holder in a machining device
WO2010043521A1 (en) * 2008-10-15 2010-04-22 Leo Lustig Parquet edge grinding machine

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2886248A1 (en) * 2013-12-13 2015-06-24 Robert Bosch Gmbh Battery operated orbital sander with a rechargeable battery
EP3476535A1 (en) * 2017-10-26 2019-05-01 Wolff GmbH & Co. KG Floor grinding apparatus with dust-tight rings
US11179825B2 (en) 2017-10-26 2021-11-23 WOLFF GmbH & Co. KG Floor grinding apparatus having dust sealing rings
CN108972261A (en) * 2018-08-02 2018-12-11 滁州市精美家电设备有限责任公司 A kind of grinding device of foaming die for refrigerator case body
CN111002132A (en) * 2019-12-04 2020-04-14 陈小虎 Inner loop dust removal building wall adaptability grinding device
CN110977706A (en) * 2019-12-17 2020-04-10 深圳丰发一诺科技有限公司 A polishing device with shock absorption function for metal tools
CN114800187A (en) * 2022-04-13 2022-07-29 黄荣 Curved surface polishing machine
CN116394090A (en) * 2023-03-22 2023-07-07 广东工科机电有限公司 Grinding and polishing device, grinding and polishing system, grinding and polishing process and application of grinding and polishing device
CN116394090B (en) * 2023-03-22 2024-03-08 广东工科机电有限公司 Grinding and polishing device, grinding and polishing system, grinding and polishing process and application of grinding and polishing device
SE2450302A1 (en) * 2023-12-20 2025-06-21 Husqvarna Ab Tool holders for a power trowel
SE547683C2 (en) * 2023-12-20 2025-11-11 Husqvarna Ab Tool holders for a power trowel

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