| 摘要 |
PURPOSE:To facilitate mounting and demounting of a disc by inserting the radial teeth of an annular body for demounting the disc into the installation holes on a polishing disc, namely into a plurality of radial grooved holes formed onto the peripheral edge of a circular hole in the center part and turning the disc in a prescribed direction. CONSTITUTION:When a disc A is mounted onto a pad 1, a disc suppressing body 6 is lowered to the full, and the radial projection pieces 6a,... are superposed and coincided with the undersurfaces of the radial teeth 4a... of an annular body for mounting the disc, and the polishing disc A is fitted collectively with the radial projecting pieces 6a... and radial teeth 4a through installation holes, and pushed to the full onto the pad 1 side. When the edge part of the disc A is pinched and turned clockwise, taking-out of the disc A is suppressed by the projecting pieces 6a..., and the disc suppressing body 6 is raised to press the undersurface of the disc A, and the disc A is mounted. When the disc A is demounted, the disc A is turned counterclockwise. |
