| 摘要 |
PROBLEM TO BE SOLVED: To unremarkably increase an attaching space even when the speed of a structural part connected to an electric regulating device is increased and a regulating distance is increased as compared with the known regulating device, when it is necessary. SOLUTION: At least two rotatable spindles (11, 12) are driven by and connected to one drive motor (17), and spacedly arranged separated by an interval and in parallel with each other. |
