| 摘要 |
PURPOSE:To perform various operations on a steep slope safely and with high efficiency. CONSTITUTION:A retention frame 2 having a pair of winches 2a is supported on a mobile crawler dolly 1 with possibility of revolving, and a driving device 4 equipped with a working arm 5 having a bucket at the tip is supported on this revolving frame 2 with possibility of swinging oscillatively about a center which consists of a horizontal shaft 3a installed on the side nearer the winch 2a, and the tips of steel cables R taken up and rewound by the two winches 2a are tied with an anchor or a tree root located over on a steep slope S. Each cable R is taken up or rewound while the driving device 4 is held horizontally, and at the same time, the mobile dolly 1 is driven, and thereby the vehicle travels on the slope S here and there to perform operations thereon. |
