Rotary brush with bi-directional mounting arrangement

Abstract

A rotary brush for use with a surface finishing tool with a drive shaft for transmitting rotary motion to the brush. The brush is in the form of a circular disc that supports circumferentially disposed brushing elements, and includes a nut having internal threads for engagement with the drive shaft. The nut extends axially outward from each face of the disc an approximately equal distance to facilitate bi-directional mounting of the brush on the drive shaft.

1 . A rotary brush for use with a surface finishing tool having a drive shaft for transmitting rotary motion to the brush, the brush being in the form of a circular disc supporting circumferentially disposed brushing elements and comprising a nut including internal threads for engagement with the drive shaft, the nut extending axially outward from each face of the disc an approximately equal distance to facilitate bi-directional mounting of the brush on the tool. 
     
     
         2 . A mounting nut for a rotary brush being in the form of a circular disc supporting circumferentially disposed brushing elements, comprising
 a. a body portion having a central bore therethrough, the bore being threaded to engage a correspondingly threaded drive shaft,   b. a disc-engaging portion located in substantially the center of the body portion for attaching the circular disc to the nut to transmit rotary motion of the drive shaft to the disc through the nut,   
       the body portion extending outward from each face of the disc when the nut is attached to the disc an approximately equal distance 
     
     
         3 . The mounting nut of  claim 2 , the body portion including hex flats on the exterior of the body portion. 
     
     
         4 . A mounting nut for a rotary disc brush, comprising a hexagonal body having an axial length L, a threaded bore extending axially through the body for the length L, and a disc-engaging portion located exteriorly of the body approximately half-way along the length L for engaging a rotary disc brush. 
     
     
         5 . A bidirectional mounting system for a rotary disc brush in the form of a circular disc supporting circumferentially disposed brushing elements, comprising an externally threaded drive shaft for producing rotary motion, a nut mountable to the center of the circular disc, the nut having a body portion with first and second ends and a central bore threaded to engage the threaded drive shaft for rotary movement therewith, the nut having a disc-engaging portion in substantially the center of the body portion between the first and second ends for attachment to the disc, the body portion extending outward from the disc-engaging portion an approximately equal distance. 
     
     
         6 . A rotary brush for use with a surface finishing tool having a drive shaft for transmitting rotary motion to the brush, the brush comprising a circular disc supporting circumferentially disposed brushing elements, and a nut including internal threads for engagement with the drive shaft located on each face of the disc, each nut extending axially outward from the face of the disc, on which it is located an approximately equal distance to facilitate bi-directional mounting of the brush on the tool. 
     
     
         7 . A rotary brush, comprising
 a. a circular disc defining a plane,   b. a plurality of brushing elements extending radially from the disc around the circumference of the disc and lying substantially in the plane defined by the disc,   c. a mounting nut located coaxial with the axis of the disc and extending symmetrically on both sides of the disc relative to the plane of the disc for mounting the disc to a drive shaft.   
     
     
         8 . The rotary brush according to  claim 7 , wherein the brushing elements comprise wire knots. 
     
     
         9 . The rotary brush according to  claim 7 , wherein the brushing elements comprise abrasive bristles. 
     
     
         10 . The rotary brush according to  claim 7 , wherein the mounting nut has a threaded axial bore. 
     
     
         11 . The rotary brush according to  claim 7 , wherein the mounting nut has a threaded axial bore and hex flats on the outer surface thereof.