BLOCK FORCED DRIVING TYPE ONE-SIDE POLISHING DEVICE

PROBLEM TO BE SOLVED: To provide a block forced driving type one-side polishing device preventing a center roller from being damaged by unnecessitating a driving mechanism exclusive for driving the center roller and preventing direct contact of the center roller and each block, and having a simple structure and excellent durability. SOLUTION: The center roller 8 is fixed to a center part of a surface plate 2 so that the center roller 8 is rotated together with the surface plate 2. A plurality of idle rollers 9 are disposed around the center roller 8 so that the idle rollers 9 is driven and rotated at fixed positions by bringing the idle rollers 9 into contact with the center roller 8. A plurality of blocks 3 holding workpieces are supported in states in which the blocks 3 are brought into contact with a guide roller 21 disposed around the surface plate 2 and the idle rollers 9. The blocks 3 are pressurized by a pressure plate to press the blocks 3 on the surface plate 2 for rotating the workpieces. Therefore, the workpieces are polished, while driving and rotating each block 3 by the center roller 8 via the idle rollers 9.