Patent ID: 6471575
Filing Date: 2002-10-29
Classification: A46B,B24D

Abstract:
A brush roll characterized in that the brush roll comprises a plurality of brush elements fitted around a shaft and arranged side by side longitudinally of the shaft, each of the brush elements comprising an assembly of annular disks joined together as arranged side by side in the direction of width thereof and each having polishing bristles or cleaning yarns implanted in an outer periphery thereof, each of the brush elements being held in engagement with the shaft by keyways formed in both a peripheral surface of the shaft and an inner peripheral surface of the brush element and equidistantly spaced apart circumferentially of the peripheral surfaces and by sunk keys fitting in the respective keyways, the sunk keys and the keyways being each so profiled in cross section that the sunk key is prevented from slipping out of the keyway radially of the brush element, the sunk keys having a length not larger than the length of the brush element, each of the sunk keys being expandable or contractable widthwise thereof and tightly engageable in the keyway when expanded and disengageable therefrom when contracted, the sunk key being prevented from slipping out of the keyway in the brush element longitudinally of the keyway by retaining means when fitted as contracted in the keyway.