Work vehicle having engine mounted thereto

1. A work vehicle having an engine mounted thereto, comprising:

a vehicle body frame extending in a longitudinal direction of vehicle;

a seat supporting deck supported to the vehicle body frame via a suspension unit;

a driver's seat supported on an upward side of the seat supporting deck;

a fuel tank supportively connected to the seat supporting deck and being spaced from and located below the driver's seat, said fuel tank being configured to supply fuel to the engine; and

a canister supportively connected to the seat supporting deck and located adjacent to the fuel tank,

wherein vibration of the vehicle body frame is not transmitted directly to the fuel tank and canister.

2. The work vehicle according to claim 1 , wherein the fuel tank is fixed to a lower face of the seat supporting deck; and the canister also is fixed to the lower face of the seat supporting deck in vicinity of a front wall of the fuel tank.

3. The work vehicle according to claim 2 , wherein:

the suspension unit includes a pair of left and right suspension modules each being vertically displaceable by a predetermined cushion stroke and pivot modules each having a pivot pin extending in a vehicle body transverse direction and a pin receiver for receiving the pivot pin; and

a rear portion of the seat supporting deck is supported to the vehicle body frame via the suspension modules and a front portion of the seat supporting deck is supported to the vehicle body frame via the pivot modules.

4. A work vehicle having an engine mounted thereto, comprising:

a vehicle body frame extending in a longitudinal direction of vehicle;

a seat supporting deck supported to the vehicle body frame via a suspension unit;

a driver's seat supported on an upward side of the seat supporting deck;

a fuel tank supported by the seat supporting deck and being located below the driver's seat, said fuel tank being configured to supply fuel to the engine;

a canister supported by the seat supporting deck and located adjacent to the fuel tank;

a fender unit including a base portion, a left fender portion covering the left rear wheel, a right fender portion covering the right rear wheel, and a floor portion;

the base portion being supported to the seat supporting deck between the driver's seat and the seat supporting deck; and

the floor portion extending from the base portion, the left fender portion and the right fender portion to a forward side of the driver's seat.

5. The work vehicle according to claim 4 , wherein the seat supporting deck comprises a plate member including a first plate portion extending horizontally in the longitudinal direction of the vehicle to support the floor portion, a third plate portion extending in the vehicle body front-rear direction at a position higher than the first plate portion to support the base portion, and a second plate portion assuming a tilted posture to connect between the first plate portion and the third plate portion.

6. The work vehicle according to claim 4 , wherein the canister is disposed in a space having a triangular cross section in its side view and delimited by the second plate portion and a front wall of the fuel tank.

7. The work vehicle according to claim 5 , wherein:

the suspension unit includes a pair of left and right suspension modules each being vertically displaceable by a predetermined cushion stroke and pivot modules each having a pivot pin extending in a vehicle body transverse direction and a pin receiver for receiving the pivot pin;

the third plate portion is supported to the vehicle body frame via the suspension modules; and

the first plate portion is supported to the vehicle body frame via the pivot modules.

8. The work vehicle according to claim 1 , wherein the work vehicle is a riding mower and the seat supporting deck comprises rear wheel fender portions.

9. The work vehicle according to claim 1 , wherein the driver's seat has a front side, a rear side and later sides and wherein the fuel tank and the canister are located adjacent one of the lateral sides.

10. The work vehicle according to claim 1 , wherein the seat supporting deck comprises wheel fender portions.

11. The work vehicle according to claim 10 , wherein the fuel tank and the canister are located on an underside of one of the wheel fender portions.

12. The work vehicle according to claim 1 , wherein the fuel tank and the canister are spaced from the vehicle body frame, whereby vibration of the vehicle body frame is transmitted to the fuel tank and the canister indirectly via the suspension unit.

13. A riding mower comprising:

a vehicle body frame extending in a longitudinal direction of vehicle;

a seat supporting deck mounted to the vehicle body frame;

at least one suspension device having a first end coupled to the vehicle body frame and a second end coupled to a rear side of the seat supporting deck;

a driver's seat mounted to the seat supporting deck;

a fuel tank connected to and located beneath the seat supporting deck, said fuel tank being configured to supply fuel to the engine; and

a canister connected to and located beneath the seat supporting deck.

14. The work vehicle according to claim 13 , wherein the fuel tank and the canister are spaced from the vehicle body frame, whereby vibration of the vehicle body frame is not transmitted directly to the fuel tank and canister.

15. The work vehicle according to claim 13 , wherein the seat supporting deck comprises left and right wheel fender portions.

16. The work vehicle according to claim 13 , wherein the driver's seat has a front side, a rear side and later sides and wherein the fuel tank and the canister are located adjacent one of the lateral sides.

17. The work vehicle according to claim 13 , wherein the seat supporting deck comprises rear wheel fender portions.

18. The work vehicle according to claim 17 , wherein the fuel tank and the canister are located on an underside of one of the rear wheel fender portions.