| 摘要 |
PURPOSE:To correspond to various kinds of works to be polished or the inner diameter fluctuation of the work to be polished by providing a polishing member with the polishing tool at its tip and supporting the polishing member at a supporting part in such a way as to be changeable in its radially protruding length from the supporting part. CONSTITUTION:A polishing member 12 is rotated around a shaft part 10, and a polishing tool (wire brush) 16 provided at the tip of the polishing member 12 performs circular motion. A work to be polished (resin mold) 1 is polished by the slidable contact of the polishing tool 16 at this time with the inner surface of the work to be polished 1. In this case, the polishing member 12 is supported by a supporting part 11 in such a way as to be changeable in its radially protruding length. With this change, the rotational radius of the polishing tool 16 is changed, so that plural kinds of works to be polished 1 of different inner diameters or the work to be polished 1 of fluctuating inner diameter can be performed by one polishing member 12. |
