| 摘要 |
PROBLEM TO BE SOLVED: To provide a working tool having a relatively simple structure and a small number of components, and capable of performing working of deburring and the like satisfactorily.SOLUTION: A cylindrical piston 3 is slidably inserted into a cylinder 2, and a cylindrical holder 4 is fixed to the end part of the cylinder 2. A tilting ring 5 is inserted into the holder 4 via a plurality of balls 6 so as to be tiltable in all directions with respect to the central axis of the cylinder 2. A spindle motor 8 for rotatably driving a blade tool 10 is fixed at a concentric position within the tilting ring 5. On the outer peripheral surface of the tilting ring 5, a plurality of conical recesses are formed at a fixed angle interval to accommodate and hold the balls 6 therein respectively. In the inner peripheral surface of the holder 4, a plurality of grooves 41 for holding the balls 6 so as to be rolled in parallel with the central axis are formed in parallel with the central axis and at the same angle interval as that of the conical recesses. |
