EP2440371B1 - Grinding and/or polishing tool, and production method - Google Patents

Description

The invention relates to a grinding and / or polishing tool according to the preamble of claim 1. Such a grinding and / or polishing tool is made CH 685 930 A5 known.

Grinding and / or polishing tools are known from the prior art and are used for various machining operations.

WO 2007/032517 discloses a polishing apparatus with a removable polishing plate. The surface of the polishing plate has two areas with different roughnesses. The areas are arranged concentrically in a variant.

US 6,309,282 discloses a polishing pad having two processing areas. A first processing area differs from a second processing area in its abrasive properties. At least one of the two areas has a multiplicity of abrasive elements.

DE 601 i0 225 T2 has a planar disc-shaped support structure on which a number of annular grinding or polishing surfaces are arranged concentrically. The individual grinding or polishing surfaces can have different abrasive properties, ie they are provided with different grinding or polishing grain.

The problem with these discs is the targeted use of the various grinding or polishing surfaces in a hand tool. Editing a surface with such a tool requires a lot of attention and monitoring of the settings. By wearing individual areas, the entire pane must be replaced.

US 5,752,876 shows a flapper disc with a rotating surface finishing tool. The individual fan elements each have an abrasive surface and overlap with the adjacent fan elements. Each fan element has abrasive particles in resin binder on the processing surface.

Other lamella grinding wheels, each with a lamellar ring area on a carrier body are made EP 1 266 724 A1 and DE 27 50 023 A1 known.

The US 5,503,592 discloses a disc-shaped grindstone with two flat grinding surfaces on a respective carrier body, wherein the carrier bodies are connected to each other by means of a screw.

The CH 685 930 A5 discloses a bevel grinding head having an inner planar abrasive coating on a backing plate and an outer concentric abrasive coating composed of an outer abrasive coating and an inner planar abrasive coating inclined to each other and disposed on a carrier ring. The two support bodies are not positively connected and axially braced by a screw.

The invention is based on the object of specifying a new grinding and / or polishing tool.

The object is achieved according to the invention by a grinding and / or polishing tool having the features of patent claim 1.

The invention is based on the idea of forming different grinding or polishing regions on at least two different separate carrier bodies, which can be assembled or assembled into a carrier structure and complement each other by the grinding or polishing regions in different radial regions Ring areas are arranged. This has the advantage that different grinding or polishing areas or materials can be easily combined in different combinations or in a modular system for different functionalities and, especially with different wear, can be exchanged separately. In addition, for each carrier body, a manufacturing method or a production facility for a tool having a carrier body with only one grinding or polishing area can be used, which is simpler than a specific method for producing a carrier body with two grinding or polishing areas. This is advantageous for individually applied, in particular glued, abrasive or polishing bodies of Lamellenschleif- or polishing wheels.

The at least two carrier bodies are arranged intermeshing or mountable and / or at least in one direction, in particular in the radial direction, positively or at least limited in play or slightly spaced connectable or connected. This ensures in a simple manner that the position of the two carrier body does not slip, and the reliability of the entire tool is increased and simplifies the installation of the tool.

Furthermore, at least two support bodies are releasably connected to each other, in particular by fastening or clamping or clamping on a rotary shaft of a drive or a tool machine, in particular a hand-held machine tool such as an angle grinder. This connection can be made quickly and easily, as well as solve quickly and easily. In addition, the at least two carrier bodies each have an opening concentric to the axis of rotation, wherein the carrier structure composed of the carrier bodies is fixed or attachable by introducing or passing a rotary shaft in or through these openings on the machine tool.

The at least two carrier bodies have different radial dimensions or diameters to one another in the radial direction relative to the axis of rotation. Further, at least one radially outer radial region is mounted on a radially larger carrier body and at least one radially inner radial region on a radially smaller carrier body.

According to the invention, the at least one grinding or polishing area in the at least one first radial area has a different inclination to the axis of rotation than the at least one grinding or polishing area in the at least one second radial area. This can take place both in that a first carrier body has a different inclination to the axis of rotation than a second carrier body, and in that a carrier body has different inclinations to the axis of rotation for different grinding or polishing surfaces provided on it

Thus, even with hand-held or operated grinding and / or polishing machines, for example known angle grinders, the clamped or rotated grinding and / or polishing tool according to the invention by adjusting the tool relative to the machined workpiece according to the predetermined different inclinations or angles of inclination in the various radial regions the surface of the workpiece with the abrasive materials or abrasive properties in the radial regions are reliably ground and / or polished, so that another radial region does not come into contact with the surface in terms of its effect on the surface or only to a small extent. In particular, a coarse machining tool area should not engage again in a finely machined workpiece area.

In at least one radial region, a plurality of grinding or polishing regions, in particular individual grinding or polishing regions arranged one behind the other in the circumferential direction are arranged according to the invention, wherein the grinding or polishing elements are arranged overlapping and / or as lamellae and rectangular or trapezoidal are formed. The number of lamellae or different grinding or polishing regions can be different, in particular being smaller in a radially inner region of the radial region than in a radially outer region of the radial region.

Embodiments and developments of the grinding and / or polishing tool result from the dependent claims of claim 1.

In addition, a radial region of at least one carrier body preferably lies in a radially outer edge region of the carrier body.

In particular, at least two support bodies of the support structure abut one another in the mounted or connected state, in particular in the radial direction, and / or are mounted on one another in a form-fitting manner. For example, within the next radially outer radial region, a smaller carrier body can also rest against the associated larger carrier body with its outer or side edges.

In addition to a positive connection or mounting of the carrier body to each other and a non-positive connection in at least one direction is possible, in particular in the axial direction parallel to the axis of rotation.

In a preferred variant, each carrier body has exactly one radial area with a grinding or polishing area attached there. This has the advantage that the composition of the support structure based on simple modules, here the carrier body occurs. Each carrier body thus has a specific grinding or polishing surface, which varies in size and / or inclination and / or their abrasive properties.

The user can now determine the width of the grinding or polishing surface by having a plurality of carrier body with grinding or polishing surfaces, which have the same abrasive properties, joins together to form a support structure.

It is preferably provided to provide a grinding or polishing tool having regions of different abrasive properties by joining carrier bodies which have grinding or polishing surfaces with different abrasive properties.

The inclination or an angle of inclination or angle of attack, which is considered or measured with respect to the axis of rotation, at least one radially further inside grinding or polishing range is preferably greater than a radially outer grinding or polishing range, but may also be smaller.

A difference between the angle of inclination of at least one radially inner grinding or polishing area and the angle of inclination of a radially outermost grinding or polishing area is in particular from 5 ° to 75 °, preferably from 8 ° to 35 °, whereby a more ergonomic for the user and sufficient difference in the employment of the tool against the workpiece is guaranteed.

Preferably, the grinding or polishing regions or an envelope of the overlapping grinding or polishing elements in a radial section or in the radial direction at least partially substantially linear or have a radially substantially linearly extending region. The slope or angle of inclination is then generally determined or measured in each substantially linearly extending region.

In one embodiment, it is possible for a grinding or polishing region lying radially inwards to have a lower abrasiveness or a finer abrasive material than a grinding or polishing region located radially further outwards or vice versa. The areas become like that designed and arranged that a finer grinding or polishing area while possibly simultaneously z. B. at the edge or after wear can engage with a coarser grinding area on the workpiece surface, but not vice versa.

The grinding or polishing regions or grinding or polishing elements of radially adjacent radial regions can now adjoin one another directly or can also be arranged at a predetermined distance from one another.

A radially further inward radial region can extend further, in particular in the radial direction, than a radially outer region of the radial region. According to this embodiment, it is thus provided that a radially outer grinding or polishing region - viewed radially - is narrower than a radially further inwardly arranged region.

In one embodiment, the shape of the carrier structure may be selected in a radial section such that the desired envelope of the grinding or polishing elements results, the grinding or polishing elements having a constant thickness over their extent, or the carrier structure in at least one of the radial regions have the same inclination to the axis of rotation as the at least one grinding or polishing area in this radial area. By overlapping the elements or lamellae, the arrangement in the middle may also be thicker than further out, thus increasing the envelope there. In general, the length and number of elements or slats and the height can be changed.

In a further variant, in a given, in particular flat, shape of the support structure, the grinding or polishing elements can be shaped in radial section so as to give the desired envelope of the grinding or polishing elements, or between a surface facing the support structure and a grinding or polishing Polishing surface of the grinding or Polierelemente be provided an inclination from which there is provided in the associated radial region inclination of at least one grinding or polishing area to the axis of rotation and in particular for a flat, perpendicular to the axis of rotation support structure equal to the inclination of the at least one Schlelf- or polishing area Rotation axis is.

More preferably, exactly two grinding or polishing areas are provided. The invention thus preferably relates to a grinding or polishing disc having two concentric arrangements of laminations (i.e., grinding or polishing elements or grinding or polishing segments), which are preferably designed like emery paper and are glued onto a disc-shaped support structure. In the outer ring coarser grinding lamellae are preferred, in the inner ring finer grinding lamellae. The fins of the inner ring are preferably arranged at a smaller setting angle than the fins in the outer ring.

Thus, with a single grinding wheel, by roughing the grinding or polishing disc relative to the workpiece to be machined with the grinding blades of the outer ring, a rough machining of the surface can be made; with the lamellae of the inner ring can be done by flatter hiring the disc a fine machining. In particular, the roughing can be done with a larger abrasive grain, while then the fine machining can be done as Nachpoliervorgang what the lamellae are provided with correspondingly fine-grained abrasive material. In principle, any abrasive materials can be used in the at least two grinding or polishing areas.

FIG 1

ein Schleif- und/oder Polierwerkzeug mit zwei Trägerkörpern in einer Explosionsdarstellung,

FIG 2

der größere Trägerkörper des Schleif- und/oder Polierwerkzeugs gemäß FIG 1 in einer Draufsicht auf de Vorderseite,

FIG 3

der größere Trägerkörper gemäß FIG 2 in einer Draufsicht auf seine Rückseite,

FIG 4

der kleinere Trägerkörper des Schleif- und/oder Polierwerkzeugs gemäß FIG 1 in einer Draufsicht auf seine Vorderseite,

FIG 5

der kleinere Trägerkörper gemäß FIG 4 in einer Draufsicht auf seine Rückseite,

FIG 6

das Schleif- und/oder Polierwerkzeug gemäß FIG 1 im zusammengesetzten Zustand in einer zentralen Schnittdarstellung,

FIG 7

eine weitere Ausführungsform zweier Trägerkörper (ohne Schleifelemente) eines Schleif- und/oder Polierwerkzeuges im zusammengesetzten Zustand in einer zentralen Schnittdarstellung,

FIG 8

eine Detailansicht aus dem Werkzeug gemäß FIG 7 in einem Schnitt und

FIG 9

das Werkzeug gemäß FIG 7 und 8 mit Schleif- und/oder Polierbereichen im an einem Winkelschleifer aufgespannten Zustand in einer Schnittdarstellung

jeweils schematisch dargestellt sind. Einander entsprechende Teile und Größen sind in den FIG 1 bis 9 mit denselben Bezugszeichen versehen.The invention will be explained below with reference to exemplary embodiments. Reference is also made to the drawings, in whose

FIG. 1

a grinding and / or polishing tool with two carrier bodies in an exploded view,

FIG. 2

the larger carrier body of the grinding and / or polishing tool according to FIG. 1 in a plan view of the front,

FIG. 3

the larger carrier body according to FIG. 2 in a plan view of his back,

FIG. 4

the smaller carrier body of the grinding and / or polishing tool according to FIG. 1 in a plan view of his front,

FIG. 5

the smaller carrier body according to FIG. 4 in a plan view of his back,

FIG. 6

the grinding and / or polishing tool according to FIG. 1 in the assembled state in a central sectional view,

FIG. 7

a further embodiment of two carrier bodies (without grinding elements) of a grinding and / or polishing tool in the assembled state in a central sectional view,

FIG. 8

a detailed view from the tool according to FIG. 7 in a cut and

FIG. 9

the tool according to FIGS. 7 and 8 with grinding and / or polishing areas in the clamped on an angle grinder state in a sectional view

are each shown schematically. Corresponding parts and sizes are in the 1 to 9 provided with the same reference numerals.

The basis of the 1 to 9 illustrated various embodiments of a grinding and / or polishing tool, as particularly in FIG. 1 and FIGS. 6 to 8 to recognize a two-part support structure 2 with two support bodies 21 and 22, which are joined together can and in particular radially substantially form-fitting or centered or at least with radial play limitation can be put into each other. An axis of rotation of the grinding and / or polishing tool 1 is denoted by 5 and extends (in the mounted state) through a central opening 11 of the first carrier body 21 and a central opening 12 of the second carrier body 22nd

Through the openings 11 and 12 is generally a rotary shaft of a machine tool, in particular a hand-held electric or pneumatic hand grinder, such as an angle grinder, with an electric drive motor or pneumatic drive, plugged and the two carrier body 21 and 22 are on this rotary shaft fastened, in particular braced with - only in FIG. 9 shown - clamping devices, such as clamping flanges. In this case, the two support bodies 21 and 22 are braced so strongly against each other axially relative to the axis of rotation 5 that they can not be rotated relative to one another due to the static friction forces. Axially to the axis of rotation 5, the two support bodies 21 and 22 are thus connected non-positively. Alternatively, a positive, for example latching, connection is also conceivable axially.

Each of the carrier bodies 21 and 22 carries an annular arrangement of grinding and / or polishing elements.

The first, smaller carrier body 21 carries in a ring or radial region 3 on a plane and obliquely outward at the angle α ( FIG. 6 ) sloping support portion 33 a plurality of overlapping grinding or polishing elements eighth

The second, larger carrier body 22 has in its outer region a ring or radial region 4, in which in the illustrated embodiment, a plurality of grinding or polishing elements 9 are arranged overlapping each other. The grinding or polishing elements 9 are on one after attached to the outside sloping flat support portion 44 of the support body 22. In 1 and FIG. 2 a part of this support area 44 is still visible in. The inclination of the carrier region 44 at the angle β to the axis of rotation 5 is in FIG. 6 shown.

The grinding or polishing elements 8 and 9 are glued on their respective support portions 33 and 44 in particular with a suitable adhesive material.

Radially inwards towards the axis of rotation 5, the carrier bodies 21 and 22 are adapted in their shape so that they can be interlocked in a form-fitting manner. In the embodiment of 1 to 6 connects to the support portion 44 inwardly via a step which is formed with a parallel to the rotation axis 5 directed cylindrical wall 47, a flat or slightly conical portion 43, which also falls outwards, but a smaller pitch or a larger angle of inclination to The conical region 43 inwardly extends an oppositely, ie inwardly, inclined conical region 42, which extends into a flat, perpendicular to the axis of rotation 5 central annular region 41 which surrounds the opening 12 , passes over.

As in the comparison from the front view according to FIG. 2 and the rear view according to FIG. 3 can be seen, formed in the illustrated embodiment in the second carrier body 22 of the central annular portion 41, the subsequent conical region 42 and the conical portion 43 both on the front and on the back, so that here the carrier body 22 has a substantially constant thickness and thus can be produced for example by forming a sheet. Also in the rear area of the carrier body 22 opposite the carrier area 44, a conical area 45 is initially provided, which merges into a practically flat annular edge area 46. The rear portion 45 may have the same pitch as the front conical support area 44.

The smaller, first carrier body 21, however, has, as in FIG. 1 and FIGS. 4 to 6 to recognize a conically adjacent to the support portion 33 in the conical region 32, which merges inwardly into a central flat annular portion 31 which rotates the central opening 11 and thus the axis of rotation 5. As in FIG. 5 can be seen, this sequence of areas at the front of the first carrier body 21 is also formed on the back, with the only difference that the carrier portion 33 at the outer edge again similar to the other carrier body 22 terminates in a flat annular region 34 in which In general, the carrier body 22 rests on the carrier body 21.

The rear side of the central annular region 31 and the conical region 32 and the rear side of the carrier region 33 of the smaller carrier body 21 are now in their shape, in particular in the radial dimensions and in the inclinations to the axis of rotation 5, equal to those at the front of the larger carrier body 22nd provided corresponding areas, namely the inner ring portion 41, the conical portion 42 and the conical portion 43. The conical portion 43 of the larger support body 22 is inclined in adaptation to the support portion 33 of the smaller support body 21 also at its inclination angle α to the rotation axis 5. Then come the inner ring portions 31 and 41 and the conical portions 43 and 33 and the steeper conical portions 32 and 42 against each other or lie on each other, whereby a radial boundary is formed, so that the inner support body 21 in the outer support body 22 radially form-fitting is held. An additional radial boundary forms a cylindrical wall 47 of the larger carrier body 22, against which the cylindrical outer side of the outer ring portion 34 of the smaller carrier body 21 strikes or comes to lie. In the inserted state is thus the smaller carrier body 21 in the larger carrier body 22, in particular in FIG. 6 to recognize radially fixed or positively held, but still against each other about the axis of rotation 5 rotatable.

The running through the axis of rotation 5 diameter of the smaller carrier body 21 is in FIG. 5 denoted by d and the diameter of the larger carrier body 22 in FIG. 2 and 3 with D. The inner diameter of the free space between the grinding or polishing elements 9 is in FIG. 2 denoted by d "and the outer diameter of the grinding or bollard elements 8 in FIG. 4 with d ', where d "is greater than d and d' can be greater than, equal to or less than d.

FIG. 6 and 7 to 9 each show a section through the composite of the support bodies 21, 22 support structure 2. The measured in the radial direction R and drawn in radial section angle or angle to the axis of rotation 5 is in the radial and the there located grinding or polishing elements 9 in the outer radial region 4 with and designated at the radially inner grinding or polishing region 6 and the grinding or polishing elements 8 located therein in the inner radial region 3 with α. The inclination angle β of the outer grinding or polishing region 7 in the outer radial region 4 to the rotation axis 5 is set smaller than the inclination angle α of the inner grinding or polishing region 6 in the inner radial region 3 of the tool 1. However, it can also be reversed.

Thus, in the illustrated embodiments, the outer grinding or polishing area 7 is made steeper than the inner grinding or polishing area 6. Thus, by appropriately adjusting the tool 1 with the tool 1 driving hand machine such as an angle grinder at different angles of attack relative to the workpiece surface either outer grinding or polishing area 7 or the inner grinding or polishing area 6 are used or come into effect. This has the advantage that the material of the workpiece can be easily treated with a hand tool and a tool 1 with different abrasive materials, in particular ground differently or sanded and polished or can be polished differently. In other words, the tool 1 can be selectively operated by appropriate adjustment during machining so that either the radially outer or that the radially inner region can be brought into engagement independently of each other.

The inner grinding or polishing elements 8 and the outer grinding or polishing elements 9 can in all embodiments in the radial direction R abut directly on each other or be spaced from each other by a radial distance of typically 1 mm to 10 mm.

If the support structure 2 already predetermines or has the radial inclinations of the grinding or polishing regions 6 and 7 in the radial regions 3 and 4, the grinding or polishing elements 8 and 9 can each be designed to be of constant thickness, so that their grinding or polishing , Polishing surfaces parallel to the support portions 33 and 44 of the support structure 2 and thus at the same inclination angles α and β, respectively. The envelope of the grinding or polishing elements 8 and 9 thus corresponds to the radially linear course of the carrier regions 33 and 44 of the carrier structure 2. This allows the use of standard material of constant thickness for the grinding or polishing elements 8 and 9.

However, the inclination of the grinding or polishing regions 6 and 7 on the surfaces of the grinding or polishing elements 8 and 9 can additionally or even completely be effected by the shape of the grinding or polishing elements 8 and 9 for a given shape of the carrier surfaces of the carrier structure 2 be set, for example, by a trapezoidal radial section of the grinding or polishing elements 8 and 9th

Shown in FIG. 6 For example, inclination angle α = 76 ° and β = 60 °, so that the difference of the inclination angle α-β = 16 °.

In the embodiment of FIGS. 7 to 9 the two support bodies 21 and 22 are slightly modified and slightly different angles of inclination α and β realized. Is shown in FIG. 7 and 9 for example, an inclination angle α = 84 ° and β = 65 °, so that the difference of the inclination angle α-β = 19 °.

In general, the difference α - β is the inclination angle α and β at an interval of 5 ° to 75 °, preferably 8 ° to 35 °. The individual tilt angles are generally set as follows. The inclination angle α from the range of 20 ° to 90 ° and the inclination angle β from the range of 15 ° to 85 °.

Between the horizontal inner region 31 in the carrier body 21 and 41 in the carrier body 22 on the one hand and the conical region 32 and 42, in each case a cylindrical region 38 or 48 is additionally formed. The cylindrical portions 38 and 48 have a significantly smaller distance or tolerance a to each other, for example, about 0.1 mm, than the two conical portions 32 and 42, which are spaced by a distance or a tolerance b of, for example, 0.5 mm, and thus serve as a radial game limitation or for radial fixation.

Axially to the axis of rotation 5, the two support bodies 21 and 22 are preferably held by force fit by clamping or clamping forces. This is in the clamped state based FIG. 9 to recognize. The free end of the rotary shaft 52, which protrudes from the sleeve 51, is guided through the central openings 11 and 12 of the two superimposed and nested support body 21 and 22 and the two support bodies 21 and 22 are axially by two on opposite sides of the flat Inner areas 31 and 32 adjacent clamping nuts 53 and 54 held on the rotary shaft 52 and fixed against rotation. In addition, of course, axial form-locking elements or a mutually preventing positive locking elements could be provided. FIG. 9 shows by way of example holding the machine for machining an overhead surface or workpiece surface. Usually, however, the machine is held in reverse, so that the tool 1 points downwards, in other words, that FIG. 9 simply rotated 180 °, to edit a surface below.

The invention is not limited to the illustrated embodiment. Further conceivable embodiments are those in which the grinding or polishing regions of the carrier bodies adjoin one another, have the same inclination and / or the same abrasive properties. It is likewise possible to provide a plurality of grinding or polishing regions with the same or different inclinations to a carrier body and to combine such carrier bodies with one another.

The invention thus enables a modular tool design, so that the tool can be put together individually depending on the purpose.

LIST OF REFERENCE NUMBERS

1

Grinding and / or polishing tool

2

support structure

3, 4

radial area

5

axis of rotation

6, 7

Grinding or polishing area

8, 9

Grinding or polishing element

11, 12

opening

21, 22

support body

25, 26

opening

31

ring area

32

conical area

33

support region

34

flat ring area

38

cylindrical area

41

ring area

42, 43, 45

conical area

44

support region

46

ring area

47

cylindrical wall

48

cylindrical area

50

angle

51

shell

52

rotary shaft

53, 54

locknut

D, d, d ', d "

diameter

R

radial direction

α

angle

β

angle

a, b

distance

Claims (14)

1. Sanding and/or polishing tool (1),

   a) which has a support structure (2),

   b) wherein in each case at least one sanding or polishing region (6, 7) is arranged at least on one side of the support structure (2) in at least two different radial regions (3, 4) of the support structure (2) that are arranged concentrically with a rotation axis (5) of the sanding and/or polishing tool (1),

   c) wherein the support structure (2) comprises at least two separate or separately produced support bodies (21, 22),

   d) wherein each support body (21, 22) has in each case at least one of the radial regions (3, 4), in which in each case at least one of the sanding or polishing regions (6, 7) is arranged,

   e) wherein the at least two support bodies (21, 22) of the support structure (2) are connected detachably together,

   f) wherein the at least two support bodies (21, 22) each have an opening (11, 12) concentrically with the rotation axis (5), wherein the support structure (2) composed of the support bodies (21, 22) is fastened or fastenable to a power tool, in particular by means of separate clamping means (53, 54), after a rotary shaft (52) has been inserted into or through these openings (11, 12),

   g) wherein at least two support bodies (21, 22) have different radial dimensions from one another in the radial direction with respect to the rotation axis (5), and at least one radially outer radial region (4) is attached to a radially larger support body (22) and at least one radially inner radial region (3) is attached to a radially smaller support body (21),
   characterized in that

   h) the at least two support bodies (21, 22) are arranged in a manner engaging in one another and are connectable or connected together in a form-fitting manner at least in one direction, in particular a radial direction,

   i) the at least one sanding or polishing region (6) of at least one first support body (21) has a different inclination to the rotation axis than the at least one sanding or polishing region (7) of at least one second support body (22), and

   j) a plurality of sanding or polishing regions (6, 7) that are arranged in succession in the circumferential direction around the rotation axis (5) are provided in at least two radial regions (3, 4), said sanding or polishing regions (6, 7) being formed in each case by individual sanding or polishing elements (8, 9), wherein the sanding or polishing elements (8, 9) are arranged in an overlapping manner and are formed in a lamellar and/or rectangular or trapezoidal manner.
2. Sanding and/or polishing tool (1) according to Claim 1, in which at least two support bodies (21, 22) of the support structure (2) rest against one another in the mounted state, in particular in the radial direction, and/or are mounted in a form-fitting manner on one another or are arranged at a distance (a, b) from or with limited play with respect to one another at least in the radial direction.
3. Sanding and/or polishing tool (1) according to either of the preceding claims, in which a radial region (3, 4) of at least one support body (21, 22) is located in a radially outer peripheral region of the support body (21, 22).
4. Sanding and/or polishing tool (1) according to one of the preceding claims, in which the at least one sanding or polishing region (6) has different abrasive properties in at least one first radial region (3) from the at least one sanding or polishing region (7) in at least one second radial region (3).
5. Sanding and/or polishing tool (1) according to one of the preceding claims, in which the inclination or a setting angle or inclination angle (α) of at least one sanding or polishing region (6) located radially further in or closer to the rotation axis is greater than the inclination or an inclination angle (β) of a sanding or polishing region (7) located radially further out or further away from the rotation axis.
6. Sanding and/or polishing tool (1) according to one of Claims 1 to 4, in which the inclination or an inclination angle (α) of at least one sanding or polishing region (6) located radially further in or closer to the rotation axis is smaller than the inclination or an inclination angle (β) of a sanding or polishing region (7) located radially further out or further away from the rotation axis.
7. Sanding and/or polishing tool (1) according to Claim 5 or Claim 6, in which a difference between the inclination angle (α) of at least one sanding or polishing region (6) located radially further in or closer to the rotation axis and the inclination angle (β) of a sanding or polishing region (7) located radially further out or further away from the rotation axis lies in a range of from 5° to 75°, preferably from 8° to 35°.
8. Sanding and/or polishing tool according to one of the preceding claims, in which each sanding or polishing element (8, 9) has a support element, wherein abrasive material (10) is arranged on one side of the support element or abrasive material (10) is embedded in the support element.
9. Sanding and/or polishing tool according to one of the preceding claims, in which the number of sanding or polishing regions or elements (8, 9) in the different radial regions (6, 7) is different, and in particular is smaller or larger in a radial region (3) located radially further in than in a radial region (4) located radially further out.
10. Sanding and/or polishing tool according to one of the preceding claims, in which the sanding or polishing regions (6, 7) extend at least partially in a substantially linear manner in a radial section or in the radial direction or an envelope curve of the mutually overlapping sanding or polishing elements (8, 9) has a region (11, 12) that extends in a substantially linear manner in a radial section or in the radial direction, wherein preferably the inclination or the inclination angle (α, β) is determined or defined in each case in the region (11, 12) of the sanding or polishing regions (6, 7) that extends in a substantially linear manner or in the envelope curve of the sanding or polishing elements (8, 9).
11. Sanding and/or polishing tool according to one of the preceding claims, in which the sanding or polishing regions (6, 7) or sanding or polishing elements (8, 9) of radially adjacent radial regions (3, 4) directly adjoin one another or are arranged at a predetermined distance from one another.
12. Sanding and/or polishing tool according to one of the preceding claims, in which a radial region (3) located radially further in extends further in the radial direction (R) than a radial region (4) located radially further out.
13. Sanding and/or polishing tool according to one of the preceding claims, in which the form of the support structure (2) is selected in radial section such that a desired envelope curve of the sanding or polishing elements (8, 9) results, wherein the sanding or polishing elements (8, 9) have constant thickness over their extent, or in which the support structure has the same inclination to the rotation axis (5) in at least one of the radial regions (3) as the at least one sanding or polishing region (6) in this radial region (3).
14. Sanding and/or polishing tool according to one of the preceding claims, in which, in the case of a predefined, in particular flat, form of the support structure (2), the sanding or polishing elements (8, 9) are selected in radial section such that a desired envelope curve of the sanding or polishing elements (8, 9) results, or between a surface facing the support structure and a sanding or polishing surface (6) of the sanding or polishing elements (8, 9) there is provided an inclination, from which the inclination, provided in the associated radial region (3), of the at least one sanding or polishing region (6) to the rotation axis (5) results, and which is equal to the inclination of the at least one sanding or polishing region (6) to the rotation axis (5) in particular in the case of a flat support structure directed perpendicularly to the rotation axis.

Images