| 摘要 |
PURPOSE:To prevent a mounting bolt after the mounting of a roller cutter from bending and to enable the replacement work of the roller cutter to be conducted easily and safely. CONSTITUTION:After a roller cutter 2 is inserted into a mounting hole 21 of a cutter head 1 from a chamber side, and a ring-shaped roller cutter mounting piece 5 notching both side ends of a flange 4 is inserted thereinto. After that, the roller cutter mounting piece 5 is tuned to 90 degrees to fit the flange 4 of the roller cutter mounting piece 5 to the inside of a circular groove 6, and after that, the roller cutter mounting piece 5 is fixed to the mounting hole 21. |
