| 摘要 |
A hitch for attaching an implement to the arm of a hydraulic excavator comprises a pair of pivoted links (50, 51), each link having a jaw (55, 56) for engaging a pin (8, 9) on the implement; the links can be jack-knifed to engage or disengage the implement; and locking means are provided for locking the links together when the implement has been engaged. Preferably, the locking means is a rotatable cam (65) and/or over-centre mechanism. |
