AT512572A1 - Polished plate with polishing cloth - Google Patents

Abstract

A polishing plate (100..108) is provided with a device for attaching a polishing cloth (6), said fastening device being formed by an elastic body (700..703) which is inserted into a central recess of the polishing plate (100..103). 108) is inserted. For this purpose, the elastic body (700... 703) comprises at least one holding section, which cooperates with at least one holding section in the polishing plate (100..108).

Description

25 08:11:32 05-06-2012 5/23

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The invention relates to a Poliertier with a device for fixing a polishing cloth

A polishing plate of the type mentioned is basically known. A polishing cloth is attached to the polishing plate in order to polish a surface to be polished. When the polishing cloth is used up, it is exchanged for something else. For example, the polishing cloth can be fixed by means of a hook and loop fastener on the polishing plate.

A disadvantage is that the installation of the polishing cloth is relatively cumbersome because the polishing cloth must be properly stretched over the polishing plate. Due to the Velcro it gets stuck but relatively unintentionally. Under certain circumstances, the assembly process must then be stopped and started again

The object of the invention is now to provide an improved Poliertelite '. In particular, the assembly of a polishing cloth on the polishing plate should be agreed.

The object of the invention is achieved with a Polilegier of the type mentioned above, wherein said fastening device is formed by an elastic body, softened inserted into a central recess of the polishing plate, and wherein the elastic body comprises at least one holding portion, which with at least one holding portion cooperates in Polierungsier

This ensures that the polishing cloth does not have to be mounted on the entire surface of the polishing plate, as for example with a Velcro 05/06/2012 08:14

No .: R998 N2011 / 22900 P.005 / 023 25 08:12:06 05-06-2012 6/23 · # ·· ttt · ** # φ · # «« * * * «·· • · * * ···. Therefore, the bollard cloth can be changed very quickly. Due to the centrifugal force acting on the polishing cloth during operation of the polishing plate, the polishing cloth hanging loosely downwards at the stop of the polishing plate is pulled straight and stretched evenly over the polishing plate. In this way, the polishing cloth can not only be changed very fast, but automatically and evenly overlays the polishing pad, so that the polished surface can be made very accurate.

Advantageous embodiments and developments of the invention will become apparent from the dependent claims and from the description in conjunction with the figures. It is advantageous if the at least one Haiteabschnitt in the elastic body by a projection and the at least one holding portion in the polishing plate are formed by a recess or vice versa By these measures, the Befestigungsvomchtung for the polishing cloth can be implemented in a simple manner in practice. It is advantageous if the elastic body is made of rubber or an elastomer. This allows the elastic body or the polishing cloth very light and very snowy! be assembled or disassembled.

It is also advantageous if the elastic body has at least one axial opening for guiding a pile means. In this way, a polishing agent, which is supplied via a channel extending through the polishing plate, pass through the elastic body and reach the surface to be polished.

It is particularly advantageous if the elastic body has at least one radial opening for guiding a polishing agent. In this way, a polishing agent, which is supplied via a channel extending through the polishing plate, can pass through the elastic body and, for example via channels in the quarter, become circumferential Open openings in the polishing plate. As a result, the polishing agent is distributed even better over the workpiece N2Q11 / 22900 05/06/2012 08:15

No .: R998 P.006 / 023 25 08:12:47 05-06-2012 7/23 ·· * · ···· * · * »·« ···· · »·· · · · ·« φ · «» »· * * · · · · · · # # # # # ft ft GO GO GO GO GO GO GO GO GO GO-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- elastic body is smaller than the depth of said recess including the thickness of the polishing cloth. In this way, it is avoided that the elastic body rubs on the surface to be polished during operation of the polishing plate. It is also favorable if a height of the elastic body is smaller than the depth of said recess. As a result, even more security is achieved that the elastic body can not rub on the surface to be polished during operation of the polishing plate.

For a better understanding of the invention, this will be explained in more detail with reference to the following figures.

1 shows a first example of a schematically illustrated Poiierteiler with star-shaped channels in bottom view and in section.

FIG. 2 shows a second example of a schematically illustrated polishing plate with channels of variable cross-section with a star shape in a bottom view; FIG.

3 shows a third example of a schematically illustrated polishing plate with spirally extending channels in a bottom view;

4 shows a fourth example of a schematically illustrated Poher dish with a plurality of feed channels running in the axial direction;

5 shows an example of a schematically illustrated Pofierteher with a device for fixing a polishing cloth in cross section.

Fig. 6 as in Fig. 5, only with a slightly different shaped fastening device;

Fig. 7 shows an example of a schematically positioned pole quarter with a device for fixing a polishing cloth and channels running outwards over the polishing plate and N2011 / 22900 05/06/2012 08:15 r .: R998 P.007 / 023 25 08:13 : 22 05-06-2012 8/23 • · · ··· fet ·

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Fig. 8 as Fig. 7, only with a slightly different shaped fastening device and slightly different shaped channels.

By way of introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or the same Bauteilbe drawings, wherein the disclosures contained in the entire description can be mutatis mutandis to the same parts with the same reference numerals or the same component names. Also, the location information chosen in the description, such as top, bottom, side, etc. related to the immediately described and illustrated figure and are mutatis mutandis to a new position to change the position. Furthermore, individual features or combinations of features from the different exemplary embodiments shown and described can also represent independent, inventive or inventive solutions. All statements on ranges of values in the description of the present invention should be understood to include any and all sub-ranges thereof, e.g. is the statement 1 to 10 to be understood that all sub-areas, starting from the lower limit 1 and the upper limit 10 are included, ie. all subregions begin with a lower limit of 1 or greater and end at an upper limit of 10 or less, e.g. 1 to 1.7, or 3.2 to 8.1 or 5.5 to 10.

1 shows a first example of a schematically illustrated polishing plate 100 in a lower view (upper image) and in a sectional view (lower image). The polishing pad 100 comprises a shaft-shaped section 2 and a dish-shaped section 3. In addition, the polishing pad 100 comprises an axially extending channel 400 for guiding a polishing agent. In addition, the polishing pad 100 comprises a plurality of circumferential openings, which are connected to the axial passage 400. Specifically, the axial channel 400 is connected to the peripheral openings by radially extending channels 500. Alternatively, it would also be conceivable that the peripheral openings are connected via hoses with the axial channel 400. The peripheral openings can be easily formed over the open ends of said tubes. N2011 / 22900 05/06/2012 08:16

No .: R998 P.008 / 023 25 06:14:05 05-06 * 2012 9/23 ** * Ι · • · «· · · · · · · · · · · · · · · Φ · t * · · · «· * **» ·! · • · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·••••••••••••••••••••••••••••• The radial channels 500 have a constant cross-section and are formed by open to the polishing side of the polishing pad 100 grooves. On the disposed between the radial channels 500 areas of the plate-shaped portion a polishing cloth 6 is attached (only in section there). For example, this can be applied by means of a hook and loop fastener.

The function of the polishing plate 100 shown in FIG. 1 is now as follows:

Upon rotation of the polishing pad 100 polishing agent, which is supplied via the axial channel 400 is thrown to the outside and on the surface to be polished (not shown) distributed. This catfish ensures that polishing agent is present at any time between the surface to be polished and the polishing cloth 6 when the polishing pad 100 is guided wildly over the workpiece. In addition, polishing agent can also escape through the polishing cloth Θ if this is permeable enough. This further improves the supply of polishing material to the surface to be polished. Advantageously, the ejected polishing agent produces a suppression in the axial channel 400, whereby polishing agent is also conveyed without a pump provided for this purpose. The bollard plate 100 thus also acts like a radial pump.

Fig. 2 shows a polishing plate 101 with likewise radially extending channels 501, which, however, have no constant, but an outwardly enlarging cross-section. In this way, the polishing agent is even better distributed on the workpiece, since the radial openings in the plate-shaped area are larger than the openings shown in FIG.

Fig. 3 shows a «! Polishing plate 102 with spirally outwardly extending channels 502. Due to the special shape and because of the overlapping movements of the outwardly flowing polishing agent and the rotational movement of the polishing plate 102 can be achieved that the polishing agent also occurs upon rotation of the Polierungsiers 102 radially outward. In this example, the channels 502 are of constant cross-section. Of course, it is also conceivable that the channels 502 have a cross-section that enlarges outward. N201-V22900 05/06/2012 08:17

No .: R998 P.009 / 023 25 25 10/23 08:14:48 05-06-2012 Μ ··· * ·· t9 ♦ I »* I * * * * *« · • * · · ** ♦ · 4 * «· ·« • · * * * * * + * * * * * * * * * * «« »9 ··· * · Φ | In the examples shown, eight radially extending channels 500 and 501 and five spiral channels 502 are seen. These are of course only illustrative examples. Of course, any other number of channels 500..502 can be selected. f

4 further shows a polishing plate 104, which is constructed very similar to the polishing plate 100 shown in FIG. In contrast, however, a plurality of axially extending channels 401 instead of only a single channel 400 are provided. By means of a special control, the polishing agent in the individual channels 401 can be pulsed (for example, with a plurality of valves or pumps) such that polishing agent is not thrown into the environment of the workpiece when the polishing plate 104 is located in an edge region of the workpiece. Specifically, polishing agent is passed only through those channels 500 (or the associated channels 401) which face the surface to be polished in a certain position of the polishing pad 104. On the other hand, no channels are passed through channels 500, which point into an environment of the workpiece in said position. Upon rotation of the polishing agent 104, the individual channels 401 and 500 are thus driven sequentially accordingly

5 shows an example of a schematically illustrated polishing plate 105 with a device for fastening a polishing cloth 6 in cross-section. The said fastening device is formed by an elastic body 700 which is inserted into a central recess of the polishing plate 105. The elastic body 700 has a holding portion, which cooperates with a holding portion in the polishing plate 105.

Concretely, the holding portion in the elastic body 700 is formed by a projection, here a collar, and the holding portion in the polishing plate 105 by a depression, here a groove. Equivalent could be provided in the elastic body 700 and a groove in the polishing plate 105, a projection.

Preferably, the elastic body 700 is made of rubber or an elastomer. As a result, it can be easily pressed into the recess in the polishing plate 105 or again removed from this, but does not fall out by itself. N2011 / 22900 05/06/2012 08:17

No .: R998 P. 010/023 25 08:15:30 05-06-2012 25 08:15:30 05-06-2012 99 9999 f · 9 9 9 9 9 9 9 · ♦♦ Μ * 9 9 9

• · · 9 9 9 • 9 9 99 7

In particular, if the elastic body 700 is made of a less elastic material, for example of plastic or spring steel, so may be provided in the body 700 in the region of the holding portion end-aligned and star-shaped grooves, so that a plurality of holding portions in the form of individual hooks results.

As is readily apparent from Fig. 5, a polishing cloth 6 is held on the dish-shaped portion 3 of the polishing pad 105 by the elastic body 700. For the assembly and disassembly, the polishing cloth 6 has a central recess through which the elastic body 700 can be pushed therethrough.

The fact that the polishing cloth 6 does not have to be mounted on the entire surface of the polishing plate 105, as is the case for example with a Velcro fastener, the polishing cloth 6 can be changed very quickly. By acting in the operation of the polishing plate 105 on the polishing cloth 6 centrifugal force is only loosely hanging down at a standstill of the polishing pad 105 polishing cloth 6 just pulled and evenly stretched over the polishing plate 105. In this way, the Poltertuch 6 can not only be changed very fast, but places itself automatically and evenly above the polishing plate 105, so that the polished surface can be made very accurate.

Provided in the elastic body 700 is an optional axial opening through which a polishing agent supplied via the channel 400 can pass onto the surface to be polished.

So that the elastic body 700 can not shy on the workpiece during polishing, its height, as in this example, is smaller than the depth of said recess, including the thickness of the polishing cloth 6. Particular assurance is given in this regard when the height of the elastic body 700 as shown in Fig. 5 is also smaller than only the depth of said recess. In this way, even if the actually impossible case is assumed, the body 700 does not yet scrub the workpiece, that the polishing cloth 6 is compressed to the thickness zero. N2011 / 22900 05/06/2012 08:18

No .: R998 P.011 / 023 25 08:16:12 03-06-2012 12/23 »*« · * · ♦ I · * · -8-

Flg. 6 shows a further example of a polishing plate 106, which has a similar structure to the polishing plate 105 shown in FIG. 5. In contrast, however, the holding section in the elastic body 701 or in the polishing plate 106 has a somewhat different shape. In addition, the polishing cloth 6 is further drawn into the opening in the polishing pad 106, or around the elastic body 701 around. This results in a particularly good clamping of the polishing cloth. 6

Fig. 7 shows a further variant of a polishing plate 107, which is carried out similarly to the polishing plate 105 shown in Fig. 5. In addition, the polishing plate 107 but channels 503, which may for example be designed as shown in Figures 1 to 3. Via radial openings in the elastic body 702, the channels 503 are connected to the axial channel 400. In addition, the elastic body 702 also has an optional axial opening through which polishing agents may also pass. The teachings disclosed in relation to the exit of the polishing agent in the context of FIGS. 1 to 4 are thus applicable without restriction.

By the above-mentioned measures, the advantages of a plurality of peripheral and connected to the axial channel openings for a polishing agent and a formed by an elastic body fixing device for a polishing cloth are combined. The advantages of the arrangements shown in the above figures occur at this point so special, namely combined, forth.

As can be clearly seen in Fig. 7, the elastic body 702 has a smaller axial bore than the body 700 shown in Fig. 5. This is the case to prevent the polishing agent from being too large in axial opening in elastic body 702 simply falls through and does not emerge or in too small a degree from the radial openings of the bollard 107.

Finally, FIG. 8 shows a variant of a polishing pad 108 which has features of the polishing pad 106 shown in FIG. 6 and the polished brush 107 shown in FIG. 7. However, in this example, the elastic body 703 has no radial openings through which the channels 504 would be connected to the axial channel 400. Instead, the channels 504 become, as it were, the elastic

N2011J22BOD 05/06/2012 08:19

No .: R998 P.012 / 023 25 08:16:55 13/23

«· * ♦ ··················································································································································································································· For example, a corresponding groove can be milled out of the polishing plate 108 with a milling cutter.

The exemplary embodiments show possible embodiments of a polishing pad according to the invention 100... 108, it being noted at this point that the invention is not limited to the specifically illustrated embodiments thereof, but rather also various combinations of the individual embodiments are possible with each other and this variation possibility due to the teaching to technical action by objective invention in the skill of those working in this technical field expert. Thus, all conceivable variants of embodiment, which are possible by combinations of individual details of the embodiment variant shown and described, are also included in the scope of protection.

In particular, it is noted that a polished animal 100..108 may in reality also comprise more components than illustrated.

For the sake of the order, it should finally be pointed out that for a better understanding of the structure of the Polterteller 100... 108 these or their components have been shown partially unevenly and / or enlarged and / or reduced in size.

The task underlying the independent inventive solutions can be taken from the description. 05/06/2012 08:19

No .: R998 P.013 / 023 25 08:18:25 05-06-2012 16/23

Reference numeral 100 .. 108 polishing plate 2 shank-shaped area 3 plate-shaped area 400 .. 401 axial channel 500 .. 504 radial channel 6 polishing cloth 700 .. 703 elastic body

N2011 / 229QG 05/06/2012 08:20

No .: R998 P.016 / 023

Claims (7)

-1- 25 08:17:29 05-06-2012 14/23 Patentans priiche 1 polishing plate (100 .. 108) with a device for fastening a polishing cloth (6), characterized in that said fastening device is provided by an elastic body ( 700..703) is formed, which is inserted into a central recess of the Poiiertellers (100..108), wherein the elastic body (700..703) comprises at least one holding portion, which with at least one holding portion in the polishing divider (100 .. 108) cooperates. 2. polishing plate (100..108) according to claim 1t, characterized in that the at least one holding portion in the elastic body (700..703) by a projection and the at least one holding portion in the polishing plate (100..108) are formed by a recess or the other way around 3. polishing plate (100..108) according to claim 1 or 2, characterized in that the elastic body (700, .703) is made of rubber or an elastomer 4. polishing plate (100..108) according to one of claims 1 to 3, characterized in that the elastic body (700..703) has at least one axial opening for guiding a polishing agent. 5. polishing plate (100..108) according to one of claims 1 to 4, characterized in that the elastic body (700.703) aulweist at least one radial opening for guiding a polishing agent aulweist 6. polishing plate (100..108) according to any one of claims 11ns 5, characterized in that a height of the elastic body (700.703) is smaller than the depth of said recess including the thickness of the Poiiertuchs (6). N2011 / 22900 05/06/2012 08:20 No .: R998 P.014 / 023 -2- 25 -2- 25 15/23 08:18:04 05-06-2012 7. Poliertem (100..108) according to one of claims 1 to 6t characterized in that a height of the elastic body (700..703) is smaller than the depth of said recess. Bemdorf Band GmbH by lawyers Bumer & Partner Rechtsanwalt GmbH N2011 / 22900 05/06/2012 08:20 Nr .: R998 P.015 / 023