| 摘要 |
<p>A power take-off device (10) connectable to a tractor provided with a power take-off, which comprises a support frame (11) fixable to a tractor and suitable for rotatably supporting at least an input shaft (21) suitable for taking drive from the tractor power take-off and at least an output shaft (22) suitable for activating at least a work tool, at least a second output shaft (40, 60) being provided, parallel to the first output shaft (22) and suitable for activating at least a further work tool, and drive transmission means (24-27, 40,41,51,52, 61,62,71,72) interposed between the input shaft (21) and the second output shaft (40, 60), wherein the transmission means comprise at least a drive pulley (24-27) keyed on the input shaft (21) and at least a driven pulley (41,42,61,62), characterised by comprising at least a pair of the drive pulleys (24,25;26,27) connected, by means of respective flexible organs (51,52;71,72) to a respective pair of the driven pulleys (41,42;61,62), the driven pulleys (41,42;61,62) of the pair being made selectively solid in rotation with the second output shaft (40, 60) via selection means (43,63).</p> |
