Sander attachment for a drill

Abstract

The present invention is a sanding bit for use with an electric drill. The bit consists of an elongated member having a drill shaft formed on a first end of the member and a slot formed on a second end of the member. The slot is dimensioned and configured to receive an elongated strip of flexible sandpaper. The sandpaper strip is wound around the second end of the member to form a plurality of layers around the second end of the member. A barrel portion is formed on the second end of the member, the barrel portion having a greater cross-sectional diameter than the shaft. The slot may bifurcate the barrel member. The barrel portion may be cylindrical or conical.

1 . A sanding bit for use with an electric drill, said bit comprising: 
 a) a barrel body having opposite first and second ends and a longitudinal axis,    b) an elongated drill shaft coaxially mounted to the first end of the barrel body,    c) the barrel body having a slot passing through the second end of the barrel body,    d) a strip of sandpaper threaded through the slot and wound around the barrel body.    
   
   
       2 . The sanding bit of  claim 1  wherein the strip of sandpaper has an abrasive surface and wherein the sandpaper is wound around the body such that the abrasive surface of the sand paper is oriented away from the barrel body.  
   
   
       3 . The sanding bit of  claim 1  wherein the slot is dimensioned to snugly receive the strip of sandpaper.  
   
   
       4 . The sanding bit of  claim 2  wherein the sandpaper is wound around the barrel body in a spiral to form a plurality of sandpaper layers around the cylindrical member.  
   
   
       5 . The sanding bit of  claim 1  wherein the barrel body is cylindrical.  
   
   
       6 . The sanding bit of  claim 5  wherein the sandpaper has an abrasive surface and wherein the sandpaper is wound around the barrel body in a spiral to form a plurality of layers with the abrasive surface of the sand paper oriented away from the barrel body.  
   
   
       7 . The sanding bit of  claim 1  wherein the barrel body is conical and wherein the second end of the barrel body is broader than the first end of the barrel body.  
   
   
       8 . The sanding bit of  claim 7  wherein the sandpaper has an abrasive surface and wherein the sandpaper is wound around the barrel body in a spiral to form a plurality of layers with the abrasive surface of the sand paper oriented away from the barrel body.  
   
   
       9 . The sanding bit of  claim 1  wherein the barrel body is conical and wherein the first end of the barrel body is broader than the second end of the barrel body.  
   
   
       10 . The sanding bit of  claim 9  wherein the sandpaper has an abrasive surface and wherein the sandpaper is wound around the barrel body in a spiral to form a plurality of layers with the abrasive surface of the sand paper oriented away from the barrel body.  
   
   
       11 . A sanding bit for use with an electric drill, said bit comprising an elongated member having a drill shaft formed on a first end of the member and a slot formed on a second end of the member, slot dimensioned and configured to receive an elongated strip of flexible sandpaper, the sandpaper strip being wound around the second end of the member to form a plurality of layers around the second end of the member.  
   
   
       12 . The sanding bit of  claim 11  wherein the slot bifurcates the second end of the member.  
   
   
       13 . The sanding bit of  claim 11  wherein the second end forms a barrel member, the barrel member and the drill shaft having cross-sectional diameters, the diameter of the barrel member being greater than that of the shaft.  
   
   
       14 . The sanding bit of  claim 13  wherein the barrel member is cylindrical.  
   
   
       15 . The sanding bit of  claim 13  wherein the barrel member is conical and wherein the conical barrel member tapers away from the drill shaft.  
   
   
       16 . The sanding bit of  claim 13  wherein the barrel member is conical and wherein the conical barrel member tapers towards the drill shaft.