| 摘要 |
PROBLEM TO BE SOLVED: To provide a jack device which easily brings up a device in an installation location.SOLUTION: A jack device includes: a lower plate; an upper plate; and a lifting mechanism disposed between the lower plate and the upper plate. The lifting mechanism includes: driving shafts which may rotate around their axes; and pantograph mechanisms which are disposed separated from each other in an axial direction of the driving shafts. The pantograph mechanisms are formed so as to move up the upper plate relative to the lower plate while maintaining the lower plate and the upper plate in a parallel state, when the driving shafts rotate around their axes.SELECTED DRAWING: Figure 1 |
