| 摘要 |
PURPOSE:To enable the effective utilization of driving forces of driving device by coinciding and synthesizing the directions of the driving forces of opposite directions by movable conductor plates provided at both sides of a coil via a hydraulic unit. CONSTITUTION:Movable conductor plates 22, 23 are arranged at both sides of a coil 21. A cylinder 24 encloses the plates. A hydraulic conduit 25 passes through the centers of the coil 21 and the plates 22, 23. An operation bar 25 secured to the plate 22 transmits the driving force out of the cylinder 24. The oil 27 sealed in the prescribed part of the cylinder 24 transmits the driving force of the plate 23 through the conduit 25 to a bar 26. When a pulse current is applied to the coil 21, a repelling force is produced between the coil 21 and the plates 22, 23. Thus, the bar 26 is moved as shown in Fig. B by the driving force of the plate 22 and the driving force applied via the oil 27 to the plate 23. |
