| 摘要 |
PURPOSE:To simplify structure and to improve accuracy and durability of the titled device by organically combining plural control motors, a vertical shaft with an arm and attaining three-dimentional head oscillation with only revolving motion. CONSTITUTION:A working tool 29 is rotated by the 2nd control motor 20 centering around the central axis B of an inclined shaft 22. The inclined shaft 22 is rotated by the 1st control motor 11 centering around the central axis A of the vertical shaft 15. The tool 29 is fitted to the shaft 22 so as to coincide with the shaft A. An arm 17 intersected with the shaft 15 is projected from one end of the shaft 15 and the shaft 22 is fitted with a prescribed angle of inclination to the arm 17. Said device makes it possible to simplify the structure and attain the three-dimentional head oscillation of the working tool 29, improving the accuracy and durability. |
