| 摘要 |
PROBLEM TO BE SOLVED: To enable a lifting platform to be stored under a floor by folding the lifting platform through manual operations, to reduce operation force when folding the lifting platform and when developing the lifting platform to a flat-plate-shape, and to improve operability.SOLUTION: An underfloor storage type lifting device includes: a body frame 10 slidable in relation to a vehicle; a slide drive mechanism for withdrawing the body frame under a floor in the vehicle; a lifting platform 60 including a main plate 61 and a sub plate 62 connected to the distal end side by a double hinge 64 and making a top face have a flat-plate-shape in a development state; a first torsion bar 81 for energizing the sub plate 62 in a folding direction in relation to the main plate 61; and a second torsion bar 82 for energizing the sub plate 62 in a direction for developing the sub plate to the flat-plate-shape in relation to the main plate 61. Operation force when folding the platform 60 and when developing the platform to the flat-plate-shape is reduced by the torsion bars 81 and 82. |
