| 摘要 |
PROBLEM TO BE SOLVED: To reduce a load to a lift device, by absorbing and cushioning impact force added to a conversion driver fitted to a screw shaft and making rotational-linear motion.SOLUTION: An electrically-driven type lift device 23 comprises a roller gauge 32 out-fitted to a screw shaft 31 for a lift by rotatingly driving the screw shaft 31 for the lift arranged along a lifting guide member 23A by an electric motor 34 for the lift, and can liftably drive a cargo handling fork 16 along the lifting guide member 23A by the roller gauge 32, and is provided with a driving plate 54 supported by the roller gauge 32 and a shock absorber 51 for absorbing a downward shock added to a passive plate 55 from the cargo handling fork 16 by a lower cushioning spring 58D by absorbing upward impact force added to the driving plate 54 via the roller gauge 32 from the screw shaft 31 for the lift by an upper cushioning spring 58U in a connection part 50 of the passive plate 55 interlocked with-connected to the cargo handling fork 16. |
