Patent ID: 11867061
Assignee: FCI HOLDINGS DELAWARE, INC.
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
1. A rock bolt dolly arranged to connect a self-drilling rock bolt including a elongate hollow rod defining at least one externally threaded end, to a rock bolting apparatus and arranged to transfer percussive energy applied to the dolly by the rock bolting apparatus to the rock bolt during installation of the rock bolt in strata and rock, the dolly comprising:
coupling means for coupling the dolly to the output shaft of the rock bolting apparatus;
a percussion plate comprising an end plate and integral side walls defining an internally threaded recess for receiving the threaded end of the rock bolt, for applying percussive loading to the elongate hollow rod of the rock bolt via the end plate and threaded side walls;
a body portion extending between the coupling means and the percussion plate transmitting forces from the output shaft to the percussion plate; wherein
the body portion defines at least one passageway for the passage of grout from a reservoir through the rock bolt dolly and into the rock bolt.