| 摘要 |
<p>To prevent the peel-off of the winding end of a channel at the time a coil brush is shaped by tightly spirally winding a channel brush, thereby obtaining an appropriate abutment the winding end of the channel at the time a rotary roll brush is shaped by externally fitting a plurality of coil brushes to the roll. A coil brush for forming a rotary roll brush in which a coil brush 10 is formed by tightly spirally winding a channel brush 7 which is formed by retaining a basal portion of a brush material on a channel 1, a flange 11 is internally fitted to opposite ends of a cavity of the coil brush10, and a roll insertion hole defined by an inner peripheral edge of the flange 11 is formed in a central area of each flange11, wherein a plurality of projecting pieces 15 are spacedly erected from an outer peripheral edge of each flange 11 towards outside, each projecting piece 15 is welded to a bottom portion of the channel 1, and one piece 15a of the projecting pieces is welded to a bottom portion in the vicinity of an end face 1d of a winding end of each channel 1, or one side edge of the one piece 15a of the projecting pieces is aligned with end faces 1d at the winding ends of the channel 1 and welded. <IMAGE></p> |
