| 摘要 |
Trenching chains and chain links are disclosed, the trenching chains including a plurality of chain link bodies joined at the ends thereof and a plurality of carriages each having one end pivotably attached at an end of a link body and an opposite end unengaged and freely pivotable. Cutting or trench sweeping implements are maintainable on the carriages. The carriages can thus be configured with lengths greater than the lengths of the link bodies. |
