Grinding Element and Grinding Apparatus

Abstract

A grinding element has an abrasive surface and an abutment surface which is offset by an offset from the abrasive surface. A grinding depth can be adjusted by changing the offset. The grinding element may be a grinding belt.

Claims

1. A grinding element, comprising: an abrasive surface; and an abutment surface, wherein the abutment surface is positioned so as to be offset from the abrasive surface by an offset, on account of which a grinding depth is adjustable.

2. The grinding element as claimed in claim 1, wherein the offset is in a range from approximately 1 to 5 mm.

3. The grinding element as claimed in claim 1, wherein the grinding element is configured so as to be multi-tiered, wherein a first tier and a second tier are releasably fastened to one another.

4. The grinding element as claimed in claim 1, wherein the abutment surface is developed for preventing any slippage of a grinding apparatus having the grinding element.

5. The grinding element as claimed in claim 1, wherein the grinding element is a grinding belt or a grinding disk.

6. A grinding apparatus, comprising a grinding element as claimed in claim 1.

7. The grinding apparatus as claimed in claim 6, wherein the grinding element is a grinding belt, and a bearing face for the grinding belt forms the abutment surface.

8. The grinding apparatus as claimed in claim 6, wherein the grinding apparatus is a filing sander.

9. A use of a grinding apparatus comprising a grinding element, wherein the grinding element includes an abrasive surface and an abutment surface, the use comprising: positioning the abutment surface offset from the abrasive surface by an offset amount; and performing bodywork repair by grinding via the grinding apparatus, wherein a grinding depth is adjustable by changing the offset amount.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0022] FIG. 1 shows two schematic drawings for visualizing the functional principle.

[0023] FIG. 2 is a partial view of a grinding apparatus in a perspective view.

DETAILED DESCRIPTION OF THE DRAWINGS

[0024] FIG. 1, viewed substantially transversely to a circumferential direction U, shows a grinding element 20 configured as a grinding belt, which has a first tier 24 and a second tier 25. An abrasive surface 22 is formed on the first tier 24. The second tier 25, by way of two corresponding lateral portions 23, forms an abutment surface 30. The abutment surface 30 is offset from the abrasive surface 22 by an offset x. Two sheet-metal layers are identified by the reference signs 81 and 82. The right half of FIG. 1 illustrates how the grinding element 20, when processing, penetrates the first sheet-metal panel 81, wherein the sheet-metal panel 82, on account of a precisely adjusted grinding depth t which corresponds to the offset x, remains entirely intact.

[0025] FIG. 2 now shows a partial view of a grinding apparatus, in particular of a filing sander, having a grinding region 2 which at least in portions is configured so as to be cylindrical. The filing sander comprises a grinding element 20 which is configured as a grinding belt and which, in the embodiment shown here, is configured so as to be two-tiered and has a first tier 24 and a second tier 25. The first tier 24 forms or comprises, respectively, an abrasive surface 22. The second tier 25 by way of two lateral portions 23 forms an abutment surface 30 which, relative to the abrasive surface 22, is offset in particular to the rear by an offset x. The grinding belt 20 rotates along a circumferential direction U and is deflected about a rotation axis D which quasi corresponds to a cylinder axis of the approximately cylindrical grinding region 2. A grinding belt 20 which is configured so as to be two-tiered, or at least so as to be stepped, respectively, such that said grinding belt 20 integrally forms the corresponding offset x by way of which a grinding depth can be adjusted has presently been described. It is indicated by way of the reference sign 4 that the component identified by said reference sign could also be a bearing face for the grinding belt 20, said bearing face being stationary. A grinding depth can thus likewise be adjusted solely by way of a depth dimension or thickness, respectively, of the grinding belt 20.

LIST OF REFERENCE SIGNS

[0026] 2 Grinding region [0027] 4 Bearing face [0028] 20 Grinding element, grinding belt [0029] 22 Abrasive surface (grinding face) [0030] 23 Lateral portion [0031] 24 First tier [0032] 25 Second tier [0033] 30 Abutment surface (abutment face) [0034] 81 Sheet-metal panel [0035] 82 Sheet-metal panel [0036] x Offset [0037] t Grinding depth [0038] U Circumferential direction [0039] D Rotation axis

[0040] The foregoing disclosure has been set forth merely to illustrate the invention and is not intended to be limiting. Since modifications of the disclosed embodiments incorporating the spirit and substance of the invention may occur to persons skilled in the art, the invention should be construed to include everything within the scope of the appended claims and equivalents thereof.