| 摘要 |
Methods and apparatus for forming a trench alongside a vehicle (for burying fiber optic cables, electrical conductors, and conduits). A cutting blade is coupled to the vehicle via an offset arm. As the vehicle is advanced along a road, the cutting blade is laterally offset from the vehicle and positioned so as to cut a narrow (e.g., 0.5-1.5 inches) and deep (e.g., 10-12 inches) trench alongside the vehicle (e.g., at the inner face of the street curb between the curb and a sidewalk abutting the curb). The offset arm includes one or more mechanical joints to facilitate adjustment of one or more of a lateral offset distance between the vehicle and the blade, a vertical offset distance between a blade housing and a road surface, and rotation of the blade housing around at least two axes to facilitate appropriate positioning of the cutting blade with respect to the vehicle. |
