| 摘要 |
PURPOSE:To enable lifting speed of a cargo-handling member to be changed in consideration of the operating conditions or the like by selecting a kind of motor rotating speed data from a storing means on the basis of the selection of a selecting means, and by providing a calculation control means for operating a calculating means son the basis of the above data. CONSTITUTION:The signals based on the selecting operation of the high, intermediate, low speed switches 26a to 26c of a mode changeover switch (selecting means) 25 are input into a controller 20, and in accordance with the program data which have been previously stored in correspondence to these signals, the rotating speed of a motor 21 for the detected value of a lift operational amount sensor 17 is calculated. In other words, when any of the high, intermediate, low speed switches 26a to 26c of the changeover switch 25 is operated, and also only a lift lever 5 is operated, a rotating speed command value corresponding to the lever operational amount set for each of the switches 26a to 26c is calculated. Thus, in consideration of the operating conditions or the like, the lifting speed of a cargo-handling member (fork) F can be changed. |
