| 摘要 |
<p>A mast assembly is adapted for attachment to an excavating apparatus such as a loader bucket of a skid steer vehicle such as a BOBCAT. The excavating apparatus includes a rear wall, a pair of side walls, and a bottom. The mast assembly includes a mast, which can be fabricated from any suitable relatively rigid and durable material, such as aluminized steel. The mast includes an upper portion and a lower portion connected by an angled portion angled to maintain the upper portion in an upright vertical position. A laser receiver is secured to the upper portion of the mast with a pair of adjustable securing straps. The laser receiver operates in a known manner to receive laser energy from a laser beacon to facilitate accurate positioning of the excavating apparatus. A first removable securing member, such as a hook arrangement or latch bracket, is affixed to the mast. The hook arrangement can include a pair of hooks which extend through a corresponding number of bores formed in the excavating apparatus. The latch bracket can include a pair of latch points that fit into an adapter plate. A second removable securing member, such as a magnet, is connected to the mast. The second securing member is attached to the mast by a pair of adjustable securing straps, or by a pivotable bracket. The magnet should have sufficient strength to secure the mast to the excavating apparatus such that the mast remains fixed during excavation.</p> |
