| 摘要 |
An apparatus (1) to connect an implement to a first apparatus (e.g. the arm of a vehicle), the apparatus comprising or including a first part (2) adapted for attachment to the first apparatus, a second part (3) adapted for attachment to a second apparatus (e.g. an implement), wherein the first and second parts are articulated one with the other about an articulation axis, and wherein means are provided actuable between modes whereby, in one mode, the first and second parts can articulate relative to each other, under any applied force (e.g. gravitation or otherwise) as a result of a reduced frictional resistance to articulation about the articulation axis, and, in the second mode, the first and second parts cannot articulate relative to each other under a similar force to that referred to as a result of an increased frictional resistance to such articulation about the articulation axis. |
