| 摘要 |
PROBLEM TO BE SOLVED: To provide a vibrating driver having construction which facilitates the fixing of the bearings for an output shaft and is highly reliable. SOLUTION: In a construction which penetrates an output shaft 2 into the axis part of a vibrator composed by arranging a piezoelectric element 4 between hollow elastic bodies 5, 6, and tightening the elastic bodies with a hollow bolt 1 screwed into the internal peripheral parts of the elastic bodies 5, 6, and transmits the rotation of rotors 11, 12 fitted to both end parts of the vibrator to the output shaft 2, bearings 7, 8 for the output shaft 2 are arranged approximately at the positions of nodes of vibration of the internal peripheral parts of the elastic bodies 5, 6. The bearings 7, 8 are arranged between the tips of the hollow bolt 1 and the position regulating stepped parts of the elastic bodies 5, 6. |
