| 摘要 |
Support discs (14,164) are attached in cyclic rings (24,190) of wheel-shaped support bases (18,166) by fixing tool. Radius of support bases is half of width of respective ring shape grinding discs (10,162). When grinding discs are contacted with processed object, base (166) is connected to drive shaft and support disc (164), so that inclination of discs (10,162) are equal. |
