Abstract: A drive train for a work vehicle comprises: an engine mounted to a vehicle body such that an output shaft of the engine extends in a lateral direction of the vehicle body; a hydrostatic transmission having a pump shaft, a motor shaft, and a housing, the hydrostatic transmission being mounted to the vehicle body such that the pump shaft and the motor shaft extend in the lateral direction; a mechanical transmission having a plurality of transmission shafts each of which extends in the lateral direction. A pump side portion of the housing of the hydrostatic transmission is connected to an end plate of the engine and a motor side portion of the housing is connected to a casing of the mechanical transmission so that the housing extends from the engine to the mechanical transmission.

Abstract: A cabin door device having a cabin frame, comprises: a door mounted to a side part of the cabin frame so as to be moveable between a fully closed position and a fully open position; and a main striker supported by the cabin frame, wherein the door has a lock device, and the door is held in the fully closed position by the lock device engaging the striker; and an auxiliary striker that is supported by the cabin frame and whose position can be changed between a held posture, in which the door is held at an intermediate position between the fully closed position and the fully open position by coupling with the lock device, and a retracted position in which the lock device of the door is allowed to engage with the striker.

Abstract: A change-speed control system is provided for a utility vehicle having a stepless change-speed apparatus for speed-changing an engine output and transmitting the speed-changed output to a traveling unit. The system includes an engine speed governor for adjusting speed of the engine, an accelerator controller and a change-speed control linkage device for providing operative displacements in the stepless change-speed apparatus and the engine speed governor in association with an operation of the accelerator controller. The change-speed control linkage device sets an operation amount for the stepless change-speed apparatus and an operation amount for the engine speed governor in correlation with the operation amount of the accelerator controller, such that an acceleration ratio for the engine speed is greater than an acceleration ratio for the stepless change-speed apparatus until the engine reaches a predetermined speed and also the stepless change-speed apparatus reaches a predetermined speed.

Abstract: A work vehicle includes a hydrostatic continuously variable speed-change device, a gear type multiple-stage speed-change device disposed downstream of the hydrostatic continuously variable speed-change device with respect to a direction in which power is transmitted, first and second oil passages, a bypass oil passage communicating the first and second oil passages with each other, a valve mechanism for opening and closing the bypass oil passage, and a manual operating member provided in a driving section for opening and closing the valve mechanism.

Abstract: A work vehicle comprising a pair of left and right wheels; a vehicle body frame supported at least partially by the pair of left and right wheels; and a suspension provided between the pair of left and right wheels and the vehicle body frame, the suspension being a five-linkage type rigid axle suspension including: a pair of left and right upper arms and a pair of left and right lower arms for positioning the pair of left and right wheels in the longitudinal direction of the vehicle body, a lateral rod for positioning the pair of left and right wheels in the lateral direction of the vehicle body, a pair of left and right coil springs for absorbing shocks from the road, and a pair of left and right dampers for controlling the movements of the pair of left and right coil springs. An auxiliary frame is further provided for supporting the pair of left and right wheels, an engine, and a transmission device, wherein the auxiliary frame is suspended on the vehicle body frame via the suspension.

Abstract: A door structure for a cab includes a door frame defining an entrance to the cab, a door for opening and closing the entrance, a hinge disposed between the door and the door frame and having an axis, the door being configured to be allowed to swing about the axis of the hinges between an open position and a closed positions, a door handle attached to the door for opening and closing the door, and a door lock for locking the door in the closed position. The door includes a door body formed of resin, and a reinforcing frame fixed to the door body. A gap between the door body and the door frame when the door is in the closed position is sealed by a seal material interposed between the door body and the door frame.

Abstract: A drive train for a work vehicle comprises: an engine mounted to a vehicle body such that an output shaft of the engine extends in a lateral direction of the vehicle body; a hydrostatic transmission having a pump shaft, a motor shaft, and a housing, the hydrostatic transmission being mounted to the vehicle body such that the pump shaft and the motor shaft extend in the lateral direction; a mechanical transmission having a plurality of transmission shafts each of which extends in the lateral direction. A pump side portion of the housing of the hydrostatic transmission is connected to an end plate of the engine and a motor side portion of the housing is connected to a casing of the mechanical transmission so that the housing extends from the engine to the mechanical transmission.

Abstract: A work vehicle comprising a pair of left and right wheels; a vehicle body frame supported at least partially by the pair of left and right wheels; and a suspension provided between the pair of left and right wheels and the vehicle body frame, the suspension being a five-linkage type rigid axle suspension including: a pair of left and right upper arms and a pair of left and right lower arms for positioning the pair of left and right wheels in the longitudinal direction of the vehicle body, a lateral rod for positioning the pair of left and right wheels in the lateral direction of the vehicle body, a pair of left and right coil springs for absorbing shocks from the road, and a pair of left and right dampers for controlling the movements of the pair of left and right coil springs. An auxiliary frame is further provided for supporting the pair of left and right wheels, an engine, and a transmission device, wherein the auxiliary frame is suspended on the vehicle body frame via the suspension.

Abstract: A change-speed control system is provided for a utility vehicle having a stepless change-speed apparatus for speed-changing an engine output and transmitting the speed-changed output to a traveling unit. The system includes an engine speed governor for adjusting speed of the engine, an accelerator controller and a change-speed control linkage device for providing operative displacements in the stepless change-speed apparatus and the engine speed governor in association with an operation of the accelerator controller. The change-speed control linkage device sets an operation amount for the stepless change-speed apparatus and an operation amount for the engine speed governor in correlation with the operation amount of the accelerator controller, such that an acceleration ratio for the engine speed is greater than an acceleration ratio for the stepless change-speed apparatus until the engine reaches a predetermined speed and also the stepless change-speed apparatus reaches a predetermined speed.

Abstract: A change-speed control system is provided for a utility vehicle having a stepless change-speed apparatus for speed-changing an engine output and transmitting the speed-changed output to a traveling unit. The system includes an engine speed governor for adjusting speed of the engine, an accelerator controller and a change-speed control linkage device for providing operative displacements in the stepless change-speed apparatus and the engine speed governor in association with an operation of the accelerator controller. The change-speed control linkage device sets an operation amount for the stepless change-speed apparatus and an operation amount for the engine speed governor in correlation with the operation amount of the accelerator controller, such that an acceleration ratio for the engine speed is greater than an acceleration ratio for the stepless change-speed apparatus until the engine reaches a predetermined speed and also the stepless change-speed apparatus reaches a predetermined speed.

Abstract: A door structure for a cab includes a door frame defining an entrance to the cab, a door for opening and closing the entrance, a hinge disposed between the door and the door frame and having an axis, the door being configured to be allowed to swing about the axis of the hinges between an open position and a closed positions, a door handle attached to the door for opening and closing the door, and a door lock for locking the door in the closed position. The door includes a door body formed of resin, and a reinforcing frame fixed to the door body. A gap between the door body and the door frame when the door is in the closed position is sealed by a seal material interposed between the door body and the door frame.

Abstract: A cabin door device having a cabin frame, comprises: a door mounted to a side part of the cabin frame so as to be moveable between a fully closed position and a fully open position; and a main striker supported by the cabin frame, wherein the door has a lock device, and the door is held in the fully closed position by the lock device engaging the striker; and an auxiliary striker that is supported by the cabin frame and whose position can be changed between a held posture, in which the door is held at an intermediate position between the fully closed position and the fully open position by coupling with the lock device, and a retracted position in which the lock device of the door is allowed to engage with the striker.

Abstract: A work vehicle includes: a hydrostatic continuously variable speed-change device; a gear type multiple-stage speed-change device disposed downstream of the hydrostatic continuously variable speed-change device with respect to a direction in which power is transmitted; first and second oil passages interconnecting between a hydraulic pump and a hydraulic motor in the hydrostatic continuously variable speed-change device; a bypass oil passage communicating the first and second oil passages with each other; a valve mechanism for opening and closing the bypass oil passage; and a manual operating member provided in a driving section for opening and closing the valve mechanism.

Abstract: A traveling transmission apparatus for a work vehicle is disclosed. The apparatus includes a stepless change-speed unit receiving power from an engine, a gear transmission mechanism receiving power from the stepless change-speed unit and disposed rearwardly of the engine, a rear-wheel differential mechanism receiving power from the gear transmission mechanism and disposed rearwardly of the engine, and a transmission case accommodating the gear transmission mechanism and the rear-wheel differential mechanism and coupled to the rear of the engine. The stepless change-speed unit is disposed rearwardly of the gear transmission mechanism and rearwardly also of an output shaft of the rear-wheel differential mechanism.

Abstract: A change-speed control system is provided for a utility vehicle having a stepless change-speed apparatus for speed-changing an engine output and transmitting the speed-changed output to a traveling unit. The system includes an engine speed governor for adjusting speed of the engine, an accelerator controller and a change-speed control linkage device for providing operative displacements in the stepless change-speed apparatus and the engine speed governor in association with an operation of the accelerator controller. The change-speed control linkage device sets an operation amount for the stepless change-speed apparatus and an operation amount for the engine speed governor in correlation with the operation amount of the accelerator controller, such that an acceleration ratio for the engine speed is greater than an acceleration ratio for the stepless change-speed apparatus until the engine reaches a predetermined speed and also the stepless change-speed apparatus reaches a predetermined speed.

Abstract: A change-speed control system is provided for a utility vehicle having a stepless change-speed apparatus for speed-changing an engine output and transmitting the speed-changed output to a traveling unit. The system includes an engine speed governor for adjusting speed of the engine, an accelerator controller and a change-speed control linkage device for providing operative displacements in the stepless change-speed apparatus and the engine speed governor in association with an operation of the accelerator controller. The change-speed control linkage device sets an operation amount for the stepless change-speed apparatus and an operation amount for the engine speed governor in correlation with the operation amount of the accelerator controller, such that an acceleration ratio for the engine speed is greater than an acceleration ratio for the stepless change-speed apparatus until the engine reaches a predetermined speed and also the stepless change-speed apparatus reaches a predetermined speed.

Abstract: A change-speed control system is provided for a utility vehicle having a stepless change-speed apparatus for speed-changing an engine output and transmitting the speed-changed output to a traveling unit. The system includes an engine speed governor for adjusting speed of the engine, an accelerator controller and a change-speed control linkage device for providing operative displacements in the stepless change-speed apparatus and the engine speed governor in association with an operation of the accelerator controller. The change-speed control linkage device sets an operation amount for the stepless change-speed apparatus and an operation amount for the engine speed governor in correlation with the operation amount of the accelerator controller, such that an acceleration ratio for the engine speed is greater than an acceleration ratio for the stepless change-speed apparatus until the engine reaches a predetermined speed and also the stepless change-speed apparatus reaches a predetermined speed.

Abstract: A transmission control apparatus includes transmission lines disposed between a pair of transmission shafts and a hydraulic multiple disc transmission clutch disposed on one side of the transmission lines. Power from an engine is transmitted via one of the transmission lines to a traveling unit. Each of the transmission lines has a friction clutch. A first gear mechanism operated by a first actuator is disposed between one of the transmission shafts and the first transmission line. A second gear mechanism operated by a second actuator is disposed between one of the transmission shafts and the second transmission line. When the first transmission line is powered, a first system operates the second gear mechanism into a speed position; the first clutch to a non-transmitting state and the second clutch to a transmitting state, thereby providing a progressive shifting of the transmission clutch from a transmitting state to a semi-transmitting state.

Abstract: A propelling transmission control apparatus for a working vehicle having a hydrostatic stepless transmission comprises a variable displacement type hydraulic pump (35), a change speed control mechanism (80) for converting a displacement of a control device (55) to a control displacement for varying a swash plate angle of the hydraulic pump, a fixed displacement main hydraulic motor (36) and a variable displacement auxiliary hydraulic motor (37) connected in series to the hydraulic pump. A common output shaft receives rotational output from both motors. A control piston (35) varies the swash plate angle of the auxiliary hydraulic motor, is connected to a pressure oil supply line (39) for supplying both hydraulic motors with pressure oil, and is operable to vary the swash plate angle of the auxiliary hydraulic motor (37) such that the auxiliary hydraulic motor (37) has an increased volume with a pressure increase applied to the control piston (38).

Abstract: A traveling transmission apparatus for a work vehicle is disclosed. The apparatus includes a stepless change-speed unit receiving power from an engine, a gear transmission mechanism receiving power from the stepless change-speed unit and disposed rearwardly of the engine, a rear-wheel differential mechanism receiving power from the gear transmission mechanism and disposed rearwardly of the engine, and a transmission case accommodating the gear transmission mechanism and the rear-wheel differential mechanism and coupled to the rear of the engine. The stepless change-speed unit is disposed rearwardly of the gear transmission mechanism and rearwardly also of an output shaft of the rear-wheel differential mechanism.