| 摘要 |
PURPOSE:To enable the changeover of a PTO unit to either forward or backward rotation, by providing a gear on a transmission shaft interlocked with the PTO speed change mechanism of a transmission and by interlocking the gear with selected one of clutch mechanisms for forward and backward rotation. CONSTITUTION:Hydraulic clutch mechanisms 6, 7 for forward and backward rotation are coupled to a propelling shaft 4 connected to an engine. A main transmission shaft 16 for driving is interlocked with selected one of the output shafts 10, 11 of the clutches 6, 7. In a PTO unit, a transmission shaft 38 interlocked with a PTO shaft is rotated forward when a shifter 45 is slid and engaged with the spline section 10A of the output shaft 10. The transmission shaft 38 is interlocked with the main transmission shaft 16 and the output shaft 11 and rotated backward when the shifter 45 is engaged with the dog section 42A of a transmission gear 42. |
