Patent ID: 7905299

Claim:
A jib assembly for use with a drill rig, comprising: a jib boom having a first end and a second end, said jib boom being configured to rotate about said first end of said jib boom, and wherein said second end of said jib boom is configured to be coupled to a mast assembly mount; and an articulation assembly having at least one variable length link, said at least one variable length link having a first end and a second end, said first end of said articulation assembly being offset from said jib boom, and wherein said second end of said articulation assembly is configured to be pivotingly coupled to the mast assembly mount; wherein said articulation assembly includes an upper link, a lower link, and a pivoting link coupling said upper link and said lower link, wherein said pivoting link is further pivotingly coupled to said jib boom, and wherein said lower link and said upper link are parallel relative to each other, and wherein at least one of said upper link and said lower link includes said at least one variable length link.