Sanding device

Abstract

A sanding device includes a rotatable structure with one or a plurality of resilient extensions that extend outward from a front face of the rotatable structure. A holding structure holds an arch of sandpaper over each resilient extension such that the sandpaper arch covers a distal end of the resilient extension.

1 . A sanding device comprising:
 a rotatable structure with one or a plurality of resilient extensions that extend outward from a front face of the rotatable structure; and   a holding structure for holding an arch of sandpaper over each of said one or a plurality of resilient extensions such that the sandpaper arch covers a distal end of that resilient extension.   
     
     
         2 . The device of  claim 1 , wherein said one or a plurality of resilient extensions extend substantially perpendicularly from the side of the rotatable structure. 
     
     
         3 . The device of claim one, wherein a resilient extension of said one or a plurality of resilient extensions comprises a brush. 
     
     
         4 . The device of  claim 1 , wherein the resilient extension is substantially flat. 
     
     
         5 . The device of  claim 4 , wherein a width of the flat resilient extension is oriented substantially radially on the front face of the rotatable structure. 
     
     
         6 . The device of  claim 1 , wherein the rotatable structure comprises a disk. 
     
     
         7 . The device of  claim 1 , comprising a face plate that is separable from the rotatable structure. 
     
     
         8 . The device of  claim 7 , wherein the holding structure comprises two slots in the face plate into which an each end of the sandpaper arch is insertable such that each end is held between the face plate and the rotatable structure when the face plate is tightened against the rotatable structure. 
     
     
         9 . The device of  claim 8 , wherein the face plate comprises an opening for a resilient extension of said one or a plurality of resilient extensions, the two slots straddling the opening. 
     
     
         10 . The device of  claim 9 , wherein the two slots are substantially parallel to the opening. 
     
     
         11 . The device of  claim 7 , wherein a spring is configured to separate the face plate from the rotatable structure when a screw for holding the face plate to the rotatable structure is loosened. 
     
     
         12 . The device of  claim 1 , further comprising a shaft that extends rearward from the rotatable structure and that is rotatable with the rotatable structure. 
     
     
         13 . The device of  claim 12 , wherein the shaft is eccentrically mounted on a rotatable mounting structure. 
     
     
         14 . The device of  claim 13 , wherein the mounting structure comprises a bearing to enable the shaft to freely rotate relative to the mounting structure. 
     
     
         15 . The device of  claim 12 , wherein the mounting structure comprises a disk. 
     
     
         16 . The device of  claim 13 , wherein a shaft of the mounting structure is connectable to a rotation mechanism. 
     
     
         17 . The device of  claim 16 , wherein the rotation mechanism comprises a CNC machine. 
     
     
         18 . A method for sanding a surface, the method comprising:
 with an arch of sandpaper held by a holding structure to cover a distal end of each resilient extension of one or a plurality of resilient extensions that extend from a side of a rotatable structure of a sanding device, rotating the device concurrently with placing the sandpaper arch in contact with the surface.   
     
     
         19 . The method of  claim 18 , wherein rotating the device comprises rotating a mounting structure on which an axis of rotation of the device is eccentrically mounted via a bearing that enables the device to freely rotate with respect to the mounting structure. 
     
     
         20 . The method of  claim 18 , further comprising operating the holding structure to hold the arch of sandpaper to the rotatable structure.