Abstract: An apparatus to connect an implement to a first apparatus, the apparatus including a first part adapted for attachment to the first apparatus, a second part adapted for attachment to a second apparatus. The first and second parts are articulated one with the other about an articulation axis. The parts are actuable between modes whereby, in one mode, the first and second parts can articulate relative to each other, and, in the second mode, the first and second parts cannot articulate relative to each other.