| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotary roll brush which permits the adequate diversion of a costly keyed shaft for forming a disk type rotary roll brush as a shaft of a channel type rotary roll brush and is inexpensive and in addition, to provide the rotary roll brush which is capable of easily dealing with a difference in the diameters between the shaft for the disk type rotary roll brush and the shaft of the channel type rotary roll brush. SOLUTION: This rotary roll brush is formed by extrapolating a drum 12 of a diameter greater than the diameter of the keyed shaft 11 onto the keyed shaft 11 insertably and removably to and from the keyed shaft 11 and setting a coil of the channel type brush 7 at the outer peripheral surface of the drum.
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