To provide a combine harvester which can smoothly turn with a turning radius intended by a driver even in a paddy field, for example, drive a reaping portion in a stopped state in the ridge side or the like, and smoothly reap grain culms planted in the ridge side or the like.
A driving force from a center gear and a driving force from a side clutch gear at one of the right and left side clutches are combined by a differential gear mechanism, and turnably transmitted to the other side of the right and left side clutches. As a first means, a slider is relatively slidably and relatively nonrotatably provided in the longitudinal direction to a clutch shaft, and the slider is engageably/disengageably constituted at a third input gear side. As a second means, the slide can be selectively engaged with a third input gear side and a transmission case side.
NAGAI TOSHIRO
IWAMOTO HIROSHI
