Abstract: A work vehicle having a hood for covering an engine room is disclosed. The engine room has a first region and a second region partitioned from each other, the engine room being configured such that air can be introduced from outside of the hood to the first region. A radiator is disposed in the first region, and air flows through the radiator from the first region to the second region. In the second region, the engine and an accessory unit for the engine are provided. The work vehicle includes an adjusting device for adjusting an amount of the air that flows from the first region to the second region.

Abstract: A work vehicle having a hood for covering an engine room is disclosed. The engine room has a first region and a second region partitioned from each other, the engine room being configured such that air can be introduced from outside of the hood to the first region. A radiator is disposed in the first region, and air flows through the radiator from the first region to the second region. In the second region, the engine and an accessory unit for the engine are provided. The work vehicle includes an adjusting device for adjusting an amount of the air that flows from the first region to the second region.

Abstract: A ride-on lawn mower includes a traveling vehicle body including an operator's seat, and a wheel post for supporting a steering wheel mounted forward of the operator's seat. The lawn mower further includes a mower apparatus connected to a front part of the traveling vehicle body, a roll-over protective structure mounted in a rear part of the operator's seat, and a front guard extending upward from the wheel post and forward of the steering wheel.

Abstract: A work vehicle includes a fixed hood covering a rear area of an engine compartment housing an engine and an engine accessory, a swing axis extending through the rear area of the engine compartment in a transverse direction of the vehicle, and a swing hood swinging around the swing axis between a closed position and an open position. The swing hood tucks the fixed hood inside the swing hood and thus covers the fixed hood in the open position, and covers a front area and a middle area of the engine compartment and overlaps with a front end portion of the fixed hood in the closed position.

Abstract: A work vehicle includes wheels and a mower unit that are driven by power from an engine, and a mower driving detecting section for detecting power transmission condition to the mower unit. An isochronous controlling section controls the engine in an isochronous control mode for maintaining an engine rotational speed at a predetermined fixed value, independently of an engine load. A droop controlling section controls the engine in a droop control mode for varying the engine rotational speed in dependence on the engine load. If power is transmitted to the mower unit, the isochronous control mode is selected.

Abstract: A work vehicle includes a cooling fan, an engine, and a diesel particulate filter (DPF) purifying exhaust gas of the engine, placed under a hood in that order, beginning at the front. Exhaust gas from the engine is exhausted through an exhaust passage after passing through the DPF. The cooling fan supplies cooling air to the rear. The DPF is placed such that a length direction thereof follows a width direction of a vehicle body. The exhaust passage includes a first passage, a second passage, and a third passage. The first passage extends forward and upward from the DPF before extending along the length direction thereof on a front side of the DPF. The second passage extends downward from a downstream portion of the first passage. The third passage extends to the rear from a downstream portion of the second passage and also includes an exhaust outlet.

Abstract: A work vehicle has a ground-work unit that is mounted under a frame supported by front wheels and rear wheels and disposed forwardly of the front wheels. The work vehicle includes a steering wheel supported to a steering post and consisting of spokes and a ring. A man-machine interface face formed in the steering post downwardly of the steering wheel and around a rotational axis of the steering wheel includes a display face having a flat panel display and an operation face having an operation input device. The steering wheel is greater in size than the flat panel display as seen in the direction of rotational axis of the steering wheel, and the operation face is greater in length than the flat panel display in the direction of vehicle width.

Abstract: A ride-on lawn mower includes a traveling vehicle body including an operator's seat, and a wheel post for supporting a steering wheel mounted forward of the operator's seat. The lawn mower further includes a mower apparatus connected to a front part of the traveling vehicle body, a roll-over protective structure mounted in a rear part of the operator's seat, and a front guard extending upward from the wheel post and forward of the steering wheel.

Abstract: A work vehicle includes wheels and a mower unit that are driven by power from an engine, and a mower driving detecting section for detecting power transmission condition to the mower unit. An isochronous controlling section controls the engine in an isochronous control mode for maintaining an engine rotational speed at a predetermined fixed value, independently of an engine load. A droop controlling section controls the engine in a droop control mode for varying the engine rotational speed in dependence on the engine load. If power is transmitted to the mower unit, the isochronous control mode is selected.

Abstract: A work vehicle includes a fixed hood covering a rear area of an engine compartment housing an engine and an engine accessory, a swing axis extending through the rear area of the engine compartment in a transverse direction of the vehicle, and a swing hood swinging around the swing axis between a closed position and an open position. The swing hood tucks the fixed hood inside the swing hood and thus covers the fixed hood in the open position, and covers a front area and a middle area of the engine compartment and overlaps with a front end portion of the fixed hood in the closed position.

Abstract: A work vehicle includes a cooling fan, an engine, and a diesel particulate filter (DPF) purifying exhaust gas of the engine, placed under a hood in that order, beginning at the front. Exhaust gas from the engine is exhausted through an exhaust passage after passing through the DPF. The cooling fan supplies cooling air to the rear. The DPF is placed such that a length direction thereof follows a width direction of a vehicle body. The exhaust passage includes a first passage, a second passage, and a third passage. The first passage extends forward and upward from the DPF before extending along the length direction thereof on a front side of the DPF. The second passage extends downward from a downstream portion of the first passage. The third passage extends to the rear from a downstream portion of the second passage and also includes an exhaust outlet.

Abstract: A riding mower comprises a raising and lowering mechanism (30, 33, 100), the raising and lowering control lever (27), and a PTO mechanism (17a, 17b) operated by a clutch lever (29). When the raising and lowering mechanism (30, 33, 100) reaches a predetermined height, a operatively connecting mechanism (5) transmits, to the raising and lowering control lever (27), a return-to-neutral displacement for returning the raising and lowering control lever (27) to the neutral position, and transmits, to the clutch lever (29), a disengaging displacement for returning the clutch lever (29) to the disengage position. A first adjusting operation member (55a) adjusts a triggering displacement at which the raising and lowering displacement is transmitted to the raising and lowering control lever (27) as the return-to-neutral displacement.

Abstract: A riding mower comprises a raising and lowering mechanism (30, 33, 100), the raising and lowering control lever (27), and a PTO mechanism (17a, 17b) operated by a clutch lever (29). When the raising and lowering mechanism (30, 33, 100) reaches a predetermined height, a operatively connecting mechanism (5) transmits, to the raising and lowering control lever (27), a return-to-neutral displacement for returning the raising and lowering control lever (27) to the neutral position, and transmits, to the clutch lever (29), a disengaging displacement for returning the clutch lever (29) to the disengage position. A first adjusting operation member (55a) adjusts a triggering displacement at which the raising and lowering displacement is transmitted to the raising and lowering control lever (27) as the return-to-neutral displacement.

Abstract: A riding work vehicle includes an engine hood provided at a rear portion of the vehicle body, an engine cooling air inlet provided at a front end area of the engine hood, and a mower connecting portion for connecting a mower to the vehicle body. A pair of right and left first fenders are supported to the vehicle body so as to be located above the front wheels or rear wheels. Second fenders are provided separately from the first fenders and overlapping at least partially with the first fenders as viewed from above. Second fender support portions support the second fenders to the vehicle body. Each one of the second fenders includes an overlapping portion overlapping with the first fender as viewed from above and a dust cover portion disposed laterally of the engine cooling air inlet.

Abstract: A lawn mower comprises: a plurality of wheels; a vehicle body supported by the wheels; a mower unit supported by said vehicle body; a driver's seat supported by said vehicle body; an engine supported by said vehicle body rearwardly of said driver's seat; a radiator disposed between said engine and said driver's seat; a hood for covering said engine; and a dust filtering case disposed at a forward portion of said hood for allowing ambient cooling air to be drawn into said radiator, the dust filtering case surrounding at least a part of the radiator and having a net portion on at least one side thereof, the net portion extending rearwardly beyond a front surface of said radiator.

Abstract: A riding work vehicle includes an engine hood provided at a rear portion of the vehicle body, an engine cooling air inlet provided at a front end area of the engine hood, and a mower connecting portion for connecting a mower to the vehicle body. A pair of right and left first fenders are supported to the vehicle body so as to be located above the front wheels or rear wheels. Second fenders are provided separately from the first fenders and overlapping at least partially with the first fenders as viewed from above. Second fender support portions support the second fenders to the vehicle body. Each one of the second fenders includes an overlapping portion overlapping with the first fender as viewed from above and a dust cover portion disposed laterally of the engine cooling air inlet.

Abstract: A working vehicle propelled by independently driven right and left running units comprising a body frame with an engine mounted thereon; a front wheel unit for supporting the body frame in cooperation with the right and left running units; a left HST for receiving torque input from the engine; a right HST for receiving torque input from the engine; a left reduction mechanism for decelerating and transmitting torque output from the left HST to the left running unit; a right reduction mechanism for decelerating and transmitting torque output from the right HST to the right running unit; a left base block supported by the body frame, this base block forming a housing base for the left HST and a housing base for the left reduction mechanism; a right base block attached to the body frame, this base block forming a housing base for the right HST and a housing base for the right reduction mechanism. The base blocks are formed as port blocks for the HSTs, and define hydraulic ports in the housing bases for the HSTs.

Abstract: A lawn mower comprises: a plurality of wheels; a vehicle body supported by the wheels; a mower unit supported by said vehicle body; a driver's seat supported by said vehicle body; an engine supported by said vehicle body rearwardly of said driver's seat; a radiator disposed between said engine and said driver's seat; a hood for covering said engine; and a dust filtering case disposed at a forward portion of said hood for allowing ambient cooling air to be drawn into said radiator, the dust filtering case surrounding at least a part of the radiator and having a net portion on at least one side thereof, the net portion extending rearwardly beyond a front surface of said radiator.

Abstract: A working vehicle propelled by independently driven right and left running units comprising a body frame with an engine mounted thereon; a front wheel unit for supporting the body frame in cooperation with the right and left running units; a left HST for receiving torque input from the engine; a right HST for receiving torque input from the engine; a left reduction mechanism for decelerating and transmitting torque output from the left HST to the left running unit; a right reduction mechanism for decelerating and transmitting torque output from the right HST to the right running unit; a left base block supported by the body frame, this base block forming a housing base for the left HST and a housing base for the left reduction mechanism; a right base block attached to the body frame, this base block forming a housing base for the right HST and a housing base for the right reduction mechanism. The base blocks are formed as port blocks for the HSTs, and define hydraulic ports in the housing bases for the HSTs.

Abstract: A mid-mount type lawn tractor having idle wheels disposed at one end in a fore and aft direction of a vehicle body, drive wheels disposed at the other end in the fore and aft direction of the vehicle body, a mower unit connected to the vehicle body between the idle wheels and drive wheels. The lawn tractor includes a wheel support frame supporting the idle wheels and pivotably connected to the vehicle body. A pivotal movement of the wheel support frame relative to the vehicle body displaces the idle wheels relative to the vehicle body, to produce a running posture or a jack-up posture lifting at least part of the vehicle body. The pivotal movement of the wheel support frame is caused by a jack device.