Sanding pad for a sander, such as an eccentric sander

Abstract

The invention relates to a sanding pad for a sander, such as an eccentric sander, which sanding pad includes a disc-shaped body with a rotation axis. The disc-shaped body has a first and second side extending substantially radially from the rotation axis and a third peripheral side extending between the first and second side. The sanding pad includes a coupling arranged on the first side, concentrically with the rotation axis, for coupling to a sander, a disc-shaped flexible plate which is arranged concentrically with the rotation axis and which lies with a first side against the second side of the disc-shaped body, where the disc-shaped flexible plate extends beyond the peripheral side as seen in radial direction; and attaching means for attaching a sanding layer arranged on a second side of the disc-shaped flexible plate opposite the first side of the plate.

Claims

1. A sanding pad for a sander, comprising: a disc-shaped body with a rotation axis, wherein the disc-shaped body has a first and second side extending substantially radially from the rotation axis and a third peripheral side extending between the first and second side in which the second side of the disk shaped body transposes smoothly into the peripheral side; a coupling arranged on the first side, concentrically with the rotation axis, for coupling to a sander; a disc-shaped flexible plate which is arranged concentrically with the rotation axis and which lies with a first side against the second side of the disc-shaped body, wherein the disc-shaped flexible plate extends beyond the peripheral side as seen in the radial direction; and attaching means for attaching a sanding layer arranged on a second side of the disc-shaped flexible plate opposite the first side of the plate.

2. The sanding pad as claimed in claim 1, wherein the length of the part of the flexible plate which extends beyond the peripheral side as seen in the radial direction is equal to or greater than the distance between the first side and the second side.

3. The sanding pad as claimed in claim 1, wherein the peripheral side is partially torus-shaped adjacent to the second side and wherein the torus shape is coaxial with the rotation axis.

4. The sanding pad as claimed in claim 1, wherein a secondary radius of the torus shape is equal to or greater than 8 millimetres.

5. The sanding pad as claimed in claim 1, wherein the disc-shaped body comprises a rigid core plate and a foam layer, wherein the coupling is arranged on the rigid core plate.

6. The sanding pad as claimed in claim 5, wherein the core plate is embedded in the foam layer.

7. The sanding pad as claimed in claim 1, wherein the attaching means comprise hook and loop fastening tape.

8. The sanding pad as claimed in claim 1, wherein the part of the disc-shaped flexible plate extending beyond the peripheral side as seen in the radial direction lies at least partially against a part of the peripheral wall during use.

9. The sanding pad as claimed in claim 2, wherein the second side transposes smoothly into the peripheral side.

10. The sanding pad as claimed in claim 3, wherein a secondary radius of the torus shape is equal to or greater than 8 millimetres.

11. The sanding pad as claimed in claim 2, wherein the disc-shaped body comprises a rigid core plate and a foam layer, wherein the coupling is arranged on the rigid core plate.

12. The sanding pad as claimed in claim 1, wherein the disc-shaped body comprises a rigid core plate and a foam layer, wherein the coupling is arranged on the rigid core plate.

13. The sanding pad as claimed in claim 3, wherein the disc-shaped body comprises a rigid core plate and a foam layer, wherein the coupling is arranged on the rigid core plate.

14. The sanding pad as claimed in claim 4, wherein the disc-shaped body comprises a rigid core plate and a foam layer, wherein the coupling is arranged on the rigid core plate.

15. The sanding pad as claimed in claim 2, wherein the attaching means comprise hook and loop fastening tape.

16. The sanding pad as claimed in claim 1, wherein the attaching means comprise hook and loop fastening tape.

17. The sanding pad as claimed in claim 2, wherein the part of the disc-shaped flexible plate extending beyond the peripheral side as seen in the radial direction lies at least partially against a part of the peripheral wall during use.

18. The sanding pad as claimed in claim 1, wherein the part of the disc-shaped flexible plate extending beyond the peripheral side as seen in the radial direction lies at least partially against a part of the peripheral wall during use.

19. The sanding pad as claimed in claim 3, wherein the part of the disc-shaped flexible plate extending beyond the peripheral side as seen in the radial direction lies at least partially against a part of the peripheral wall during use.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) These and other aspects of the invention are elucidated with reference to the following figures.

(2) FIG. 1 shows a cross-section of a sanding pad according to the invention.

(3) FIG. 2 shows a top view of a sanding pad according to the invention.

DESCRIPTION OF THE INVENTION

(4) FIGS. 1 and 2 show a sanding pad 1 according to the invention. Sanding pad 1 is constructed from a disc-shaped body 2, rotatable around a rotation axis R. A connecting screw 4 is arranged on disc-shaped body 2 on the first or upper side 3, concentrically with rotation axis R, by means of connecting plate 5. Connecting screw 4 can be fastened to a sander (not shown).

(5) Disc-shaped body 2 is constructed from a foam layer 6 and core plate 7 arranged thereon concentrically with rotation axis R. Core plate 7 is embedded in foam layer 6, whereby an upright edge 8 is formed all around core plate 7. Foam layer 6 has a torus shape all around the underside 9 of disc-shaped body 2.

(6) A flexible plate 10, which can curve around foam layer 6 when encountering a curvature in the surface for treating, is arranged on the second or underside 9 of disc-shaped body 2, concentrically with rotation axis R, using a glue layer (not shown). A layer of hook and loop fastening tape 11 is arranged on the underside of flexible plate 10 for attaching a sanding layer thereto.

(7) In an advantageous embodiment the flexible plate is made of polycarbonate and the dimensions are as follows. Disc-shaped body 2 has a height Y.sub.1 of 15 millimetres. The height Y.sub.2 of upright edge 8 is here 3 millimetres. The height Y.sub.3 of flexible plate 10 is 0.480 millimetres. The diameter X.sub.1 of coupling plate 5 is 45 millimetres. The diameter X.sub.2 of core plate 7 is 99 millimetres. The diameter X.sub.3 of foam layer 6 is 105 millimetres. The diameter X.sub.4 of flexible plate 10 and the hook and loop fastening tape 11 fixed thereto is 148 millimetres. The width X.sub.5 of edge 8 is 3 millimetres.

(8) In addition to giving an example of an advantageous embodiment, the dimensions described here also give an indication of advantageous ratios of these dimensions. If it is desired here to increase the diameter, and thereby the surface of the flexible plate with attaching means, it will generally also be desired for a good operation to increase the dimensions of the sanding pad perpendicularly of this surface.