| 摘要 |
PURPOSE:To prevent the slip of self-travelling truck wheels supported/guided by travel rails. CONSTITUTION:A self-travelling truck 11 is provided with a lateral pair of driving wheels 13A, 13B supported on travel rails 1A, 1B, and a travel drive unit 21 interlocked with the driving wheels 13A, 13B. Independently connected/ disconnected electromagnetic clutches 16A, 16B are provided in interlocking paths between the travel drive unit 21 and the driving wheels 13A, 13B, and magnet tapes 36A, 36B are provided at the curve parts of the travel rails 1A, 1B. A magnetic sensor 33 and a control device 40 are further provided on the self-travelling truck 11 side. When the self-travelling truck 11 travels at the curve part, the magnetic sensor 33 detects the polarity of the magnet tapes 36A, 36B, and according to this detection signal, the control device 40 disconnects the clutch 16A of the driving wheel 13A passing the inner side of the curve. The driving wheel 13B passing the outer side of the curve is forcibly rotated, and the driving wheel 13A passing the inner side of the curve is idled and slave-rotated. |
