| 摘要 |
The present invention relates to a reversible plough (1) with an improved "non-stop" safety system. Said plough (1) comprises a plurality of plough bodies (100), each comprising a frame element (5), a plough tongue (2) supporting ploughshare units (4a, 4b) by means of two respective arms (3a, 3b), wherein said plough tongue (2) is connected to said frame element (5) by means of a fulcrum hinge (6), and a safety system to allow the lifting of the plough body (100) around said fulcrum hinge (6), in case of impact of the ploughshare units against an obstacle. Said safety system comprises: - a hydraulic cylinder (7), associated with said plough tongue (2), comprising a stem (8), the head thereof being provided with a pin (9) movable in a slot (14) of said plough tongue (2), and a cylinder housing (10) within which said stem (8) can slide; - a seat (19) obtained in said frame element (5) along a curved profile thereof, wherein: - said plough tongue (2) comprises a cavity (13) adapted to contain said hydraulic cylinder (7), so that the same is freely slidable therein; - said arms (3a, 3b) are rotatably associated with said plough tongue (2) by means of two corresponding hinges (11a, 11b); - said arms (3a, 3b) are associated with the cylinder housing (10) of said hydraulic cylinder (7) by means of two corresponding connecting rods (12a, 12b). |
