| 摘要 |
A hitch apparatus (1) for hitching an implement to a three-point linkage of a tractor, the hitch apparatus (1) comprising a support element (5) comprising a cross member (7) and a pair of spaced apart side members (8) extending downwardly from the cross member (7), and an upstanding member (10) extending upwardly from the cross member (7). A carrier element (25) is slideable upwardly and downwardly on the upstanding member (7). A pair of lower connecting brackets (12) located on the side members (8), and an upper connecting bracket (30) located on the carrier element (25) for connecting the apparatus (1) to the three-point linkage of a tractor. A pair of lower hook-shaped coupling elements (34) also located on the side members (8) and an upper hook-shaped coupling element (42) located on the carrier element (25) for engaging respective mounting pins of lower and upper mounting brackets on the implement. An hydraulic ram (46) acting between one of the side members (8) and the carrier element (25) for urging the carrier element (25) downwardly on the upstanding member (10) so that the mounting pins of the mounting brackets of the implement are tightly gripped between the lower coupling elements (34) and the upper coupling element (42). A ratchet mechanism (50) on the carrier element (25) co-operates with notch openings (54) in the upstanding member (10) for securing the carrier element (25) on the upstanding member (10) with the upper coupling element (42) at a selectable one of a plurality of spacings from the lower coupling elements (34) for tightly engaging the mounting brackets of the implement between the lower coupling elements (34) and the upper coupling element (42). |
