| 摘要 |
PROBLEM TO BE SOLVED: To provide a ladder lifting device capable of restraining a height dimension small, also stable in strength, and moreover excellent in operability.SOLUTION: The ladder lifting device comprises a base member arranged with a body frame arranged in a higher position by a predetermined short dimension than its upper surface on the upper surface of a vehicle body, a ladder member holding body reciprocatable in the vehicle longitudinal direction to this base member and a rotation allowable mechanism for allowing rotation in the lower direction of a rear end of the ladder member holding body in a state of sliding this ladder member holding body to the rear side. The ladder member holding body becomes a ladder lowering state by displacement of the rotation allowable mechanism by imparting external force in the lower direction on the rear end side of the ladder member holding body in a state of sliding to the rear side still in a horizontal state, and the ladder member holding body returns to the horizontal state from the ladder lowering state by the displacement of the rotation allowable mechanism by imparting the external force in the upper direction on the rear end side of the ladder member holding body. |
