Handheld, Portable Drum Sander

Abstract

A hand held drum sander is disclosed. The sander is a self-contained power driven device having a novel method of driving and supporting the sanding drum and retaining the sanding substrate. The present invention relates to a device for the finishing of irregular shape objects by using a drum sander.

1 . A sanding device to finish irregular shaped objects or the like comprising:
 A sanding drum directly driven by a motor inside the sanding drum, controller by a circuit board, that is powered by an enclosed battery.   A method of retaining the sand paper to the motor drum using compressive nut and a concentric elastic drum that is compressed by the nut so that its diameter increases to retain the sand paper.   An end cover plate used to restrain the cantilevered end of the stationary motor shaft from bending loads during operation and protect the user from the turning sand drum assembly.   
     
     
         2 . A sanding device as in  claim 1  that is driven by an a/c line cord internal hub motor. 
     
     
         3 . A sanding device as in  claim 1  that the sanding drum is driven by a motor in the handle of the tool and the power is transmitted to the sanding drum by a gear train or a flexible shaft. 
     
     
         4 . A sanding device as in  claim 1  where the sand paper is retained to the sanding drum by adhesive. 
     
     
         5 . A sanding device as in  claim 1  where the device is constructed out of metal.