Transmission

A transmission of a vehicle including a traveling transmission path in which driving power is transmitted from an driving power source to a pair of right and left main driving wheels through an HST, a planetary gear mechanism, a traveling gear speed change mechanism and a differential gear mechanism, and a PTO transmission path in which driving power transmitted through a PTO clutch mechanism from the driving power source is output outside;

• the planetary gear mechanism, the traveling gear speed change mechanism, the differential gear mechanism and the PTO clutch mechanism being accommodated in a transmission case that is capable of storing oil;
• the HST being supported on an outer surface of a first end wall of the transmission case positioned on one side in a vehicle longitudinal direction;
• and the transmission being capable of drawing oil stored in the transmission case through a suction filter,
• wherein traveling rotational shafts extending along the vehicle longitudinal direction and forming the traveling transmission path include
• a planetary output shaft operatively connected to an output portion of the planetary gear mechanism that combines rotational power of the HST output shaft and the HST input shaft, the planetary output shaft being positioned coaxially with the HST output shaft,
• a traveling transmission shaft displaced from the planetary output shaft to a first side in a vehicle width direction,
• a traveling speed change shaft positioned below the traveling transmission shaft and transmitting rotational power, which is transmitted from the traveling transmission shaft in a state that its rotational speed has been changed by the traveling gear speed change mechanism, to an input ring gear of the differential gear mechanism, and
• a sub-traveling output shaft positioned below the traveling speed change shaft and operatively connected to the traveling speed change shaft, the sub-traveling output shaft extending outward from the first end wall,
• wherein PTO rotational shafts extending along the vehicle longitudinal direction and forming the PTO transmission path include
• a PTO input shaft positioned coaxially with and relatively non-rotatable around its axis line to the HST input shaft,
• a PTO clutch shaft operatively connected to the PTO input shaft through the PTO clutch mechanism and positioned below and on a second side of the PTO input shaft in the vehicle width direction, the second side being opposite to the first side in the vehicle width direction,
• a main PTO transmission shaft operatively connected to and positioned below the PTO clutch shaft,
• a main PTO shaft operatively connected to the main PTO transmission shaft and supported by a second end wall of the transmission case positioned on a side opposite to the first end wall in the vehicle longitudinal direction so as to extend outward from the second end wall, and
• a sub-PTO shaft operatively connected to the main PTO transmission shaft and extending outward from the first end wall, and
• wherein the suction filter is connected to the first end wall so as to be positioned between the sub-traveling output shaft and the sub-PTO shaft with respect to the vehicle width direction so that at least a part of the suction filter overlaps the HST in a plan view and so as to be positioned below the HST with respect to a vertical direction so that at least a part of the suction filter overlaps the sub-traveling output shaft and the sub-PTO shaft in a side view.