| 摘要 |
A safety device for the manoeuvring and auxiliary winching of self-propelled vehicles used on steep slopes is provided with a winding drum (30) around which a winching cable (28) is wound, said cable having one end (28a) fixed to the top of the slope to be travelled up. The device (18) comprises moreover a pair of rollers (34, 36) around which the cable (28) is passed in advance, before being wound around the winding drum (30). The device (18) comprises finally a manoeuvring arm (20), rotatable about a vertical axis (Y), along which the cable (28) runs. The manoeuvring arm (20) is provided with a motor (26) for positioning thereof about the vertical axis (Y) and can be tilted through 90.degree. about a horizontal axis (X).
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