Patent ID: 11939199
Assignee: nan
Field: Handling (Mechanical engineering)
Classification: CPC B  E | IPC B  E

Claim 17:
18. An extension arm accessory unit for a drywall crane fork assembly, said extension arm accessory unit comprising:
a mounting bracket a generally C-shaped arrangement for receiving a fork carrier beam of a drywall crane fork assembly;
a removable sidewall carried by said mounting bracket for enclosing said mounting bracket around said fork carrier beam when mounted;
a tensioning member carried by said removable sidewall for biasing against the fork carrier beam when mounted to draw said mounting bracket against said fork carrier beam to secure said mounting bracket to the beam;
an extension arm port carried by said mounting bracket;
an extension arm carried in said extension arm port, wherein said extension arm has a generally L-shaped arrangement with a first arm portion adjustably carried in said extension arm port, and a second arm portion disposed at a distal end of said first arm portion and extending perpendicular to said first arm portion;
at least one spacer block disposed in said extension arm port engaging said extension arm so that said extension arm is laterally spaced from said mounting bracket to accommodate and extend past lifting forks carried on said fork carrier beam;
a first protection pad disposed on a top side of said second arm portion of said extension arm, wherein said first protection pad is releasably mounted to said top side of said second arm portion; and,
a second protection pad disposed on a bottom side of said second arm portion of said extension arm, wherein said second protection pad is releasably mounted to said bottom side of said second arm portion;
whereby said mounting bracket is removably mountable around the fork carrier beam and provides said extension arm extending in an adjustable arrangement perpendicular to lifting forks of the drywall crane fork assembly to assist with sliding drywall off the fork assembly over an extended distance.