Rotary finishing device

Abstract

A rotary finishing device includes a generally circular hub having a front surface, a back surface, an inner periphery and an outer periphery. The inner periphery of the device defines a throughhole. The front surface of the hub has a plurality of slots formed therein. Each of the plurality of slots has a plurality of finishing sheets secured therein by an adhesive. Each of the finishing sheets is of sufficient length such that when the generally circular hub rotates at a slower speed, the plurality of sheets remain within the outer periphery of the generally circular hub and provide a relatively flexible device for contacting a surface to be finished. Further, when the generally circular hub rotates at a higher speed, the plurality of sheets extend beyond the outer periphery of the generally circular hub and provide a relatively stiff device for contacting a surface to be finished.

1 . A rotary finishing device, comprising: 
 a hub having a front surface, a back surface, and an outer periphery;    a plurality of slots formed in said front surface of said hub;    each of said plurality of slots having at least one finishing sheet secured therein;    wherein each of said at least one finishing sheet has a length that is greater than or equal to a respective width thereof.    
   
   
       2 . The rotary finishing device of  claim 1 , wherein each of said plurality of slots includes a plurality of finishing sheets disposed therein.  
   
   
       3 . The rotary finishing device of  claim 1 , wherein each of said at least one finishing sheet extends generally perpendicularly from said front surface.  
   
   
       4 . The rotary finishing device of  claim 2 , wherein said length of each of said plurality of finishing sheets is greater than or equal to twice said width of each of said finishing sheets.  
   
   
       5 . The rotary finishing device of  claim 2 , wherein said length of each of said plurality of finishing sheets is greater than or equal to three times said width of each of said finishing sheets.  
   
   
       6 . The rotary finishing device of  claim 2 , wherein each of said plurality of finishing sheets are secured within a respective one of said plurality of slots by an adhesive.  
   
   
       7 . The rotary finishing device of  claim 1 , wherein each of said plurality of slots includes a plurality of sheets of sandpaper disposed therein.  
   
   
       8 . The rotary finishing device of  claim 7 , wherein each of said plurality of slots includes a plurality of sheets of sandpaper with the grit facing in a direction in line with clockwise rotation of the device and a plurality of sheet of sandpaper with the grit facing in a direction in line with counter clockwise rotation of the device to allow the device to be operated in both directions.  
   
   
       9 . The rotary finishing device of  claim 8 , wherein said plurality of sheets of sandpaper facing in said clockwise direction has a grit that is different than a grit of said plurality of sheets of sandpaper facing in said counter-clockwise direction.  
   
   
       10 . A rotary finishing device, comprising: 
 a hub having a front surface, a back surface, and an outer periphery;    a plurality of finishing sheets in communication with and extending from said front surface of said hub and extending in the direction of an axis of rotation of said hub;    wherein each of said finishing sheets has a length that is greater than or equal to a respective width thereof.    
   
   
       11 . The rotary finishing device of  claim 10 , wherein when said hub rotates at a slower speed, said plurality of sheets provide a relatively flexible device for contacting a surface to be finished.  
   
   
       12 . The rotary finishing device of  claim 10 , wherein when said hub rotates at a higher speed, said plurality of sheets fan out and provide a relatively stiff device for contacting a surface to be finished.  
   
   
       13 . The rotary finishing device of  claim 10 , wherein said length of each of said at least one finishing sheet is greater than or equal to twice said width of each of said at least one finishing sheet.  
   
   
       14 . The rotary finishing device of  claim 10 , wherein said length of each of said at least one finishing sheet is greater than or equal to three times said width of each of said at least one finishing sheet.  
   
   
       15 . The rotary finishing device of  claim 10 , further comprising: 
 a plurality of slots formed in said front surface of said hub, each of said plurality of slots receiving at least one finishing sheet.    
   
   
       16 . The rotary finishing device of  claim 15 , wherein each of said at least one finishing sheet is secured within a respective one of said plurality of slots by an adhesive.  
   
   
       17 . The rotary finishing device of  claim 10 , wherein each of said plurality of finishing sheets consists of sandpaper.  
   
   
       18 . The rotary finishing device of  claim 17 , wherein each of said plurality of slots includes a plurality of sheets of sandpaper with the grit facing in a direction in line with clockwise rotation of the device and a plurality of sheet of sandpaper with the grit facing in a direction in line with counter-clockwise rotation of the device to allow the device to be operated in both directions.  
   
   
       19 . The rotary finishing device of  claim 17 , wherein said plurality of sheets of sandpaper facing in said clockwise direction has a grit that is different than a grit of said plurality of sheets of sandpaper facing in said counter clockwise direction.  
   
   
       20 . A rotary finishing device, comprising: 
 a hub having a front surface, a back surface, an inner periphery and an outer periphery;    a plurality of finishing sheets coupled to said front surface of said hub, said plurality of finishing sheets extending generally perpendicularly from said front face and defining a starting footprint;    wherein each of said plurality of finishing sheets is of sufficient length such that when said generally circular hub rotates at a slower speed, said plurality of sheets provide a relatively flexible device for contacting a surface to be finished; and    wherein when said generally circular hub rotates at a higher speed, said plurality of sheets extend beyond said starting footprint to a provide a relatively stiff device for contacting a surface to be finished.    
   
   
       21 . The rotary finishing device of  claim 20 , wherein said front surface of said hub includes a plurality of slots with each slot receiving at least one finishing sheet therein.  
   
   
       22 . The rotary finishing device of  claim 20 , wherein each of said plurality of sheets is secured to said front surface of said hub by an adhesive.  
   
   
       23 . The rotary finishing device of  claim 21 , wherein each of said at least one finishing sheet is secured within a respective one of a plurality of slots by an adhesive.  
   
   
       24 . The rotary finishing device of  claim 20 , wherein each of said finishing sheets has a length that is greater than or equal to a respective width thereof.  
   
   
       25 . The rotary finishing device of  claim 21 , wherein each of said finishing sheets has a length that is greater than or equal to twice a respective width thereof.  
   
   
       26 . The rotary finishing device of  claim 20 , wherein each of said finishing sheets has a length that is greater than or equal to three times a respective width thereof.  
   
   
       27 . The rotary finishing device of  claim 20 , wherein said plurality of finishing sheets are sheets of sandpaper.