| 摘要 |
PURPOSE:To provide a positive anti-removal and further reduce operating steps of anti-removal by a method wherein recessed grooves are formed at the bottom part of blade fitting groove for a disk and an opposing blade fixing end edge and then a setting plate inserted therein. CONSTITUTION:A recessed groove 2b is formed at the bottom part of the fitting groove of the blade 3 of a disk 2 and a recessed groove 3a is formed at the end edge of the blade opposing to the former, respectively, and a setting plate 4 is inserted between the blade and the disk 2 after the blade 3 is inserted into the disk 2. Both ends of the inserted setting plate 4 are twisted and bent in the recessed grooves 2b and 3a, the projected parts are cut and caulked. |
