Abstract: An oil pressure control device has a neutral position, a first operation position, and a second operation position. The second operation position is performed without performing an operation corresponding to the first operation position from the neutral position. An electromagnetic proportional valve switches a switching control valve. A control unit controls the electromagnetic proportional valve based on an operation command of an operation tool. A mode stitching switch is provided to switch a control mode. The operation tool is operable to a one-sided region, a neutral region, and an other-side region. The control unit supplies a current value corresponding to an other-side first operation position to the electromagnetic proportional valve when the operation tool is operated to the other-side region. The control unit supplies a current value corresponding to an other-side second operation position to the electromagnetic proportional value when the operation tool is operated to the other-side region.

Abstract: A working vehicle includes an operator's seat, a vehicle body to travel selectively using either manual steering performed manually by the operator or automatic steering performed based on a position of the vehicle body detected by a position detector without manual operation by the operator, and a first operation actuator on a lateral side of the operator's seat to selectively start or terminate the automatic steering during rearward traveling of the vehicle body or to correct the position of the vehicle body during rearward traveling of the vehicle body.

Abstract: A work vehicle includes a steering wheel on a rear side with respect to a display, in front of a driver seat, and that includes spokes and a ring-shaped portion connected to the spokes. An opening is between the spokes and the ring-shaped portion. The work vehicle further includes a steering controller to change a steering angle of a steerable wheel based on a wheel angle that is a rotation angle of the steering wheel about a wheel rotation shaft, and an adjuster to adjust a relationship between the wheel angle and the steering angle.

Abstract: A control device for a work vehicle configured or programmed to travel autonomously includes a vehicle position calculator to calculate a vehicle position, a travel direction calculator to calculate a travel direction that is a front-back direction of the vehicle body, a steering state detector to obtain data on a steering state, a vehicle position estimator to calculate an estimated vehicle position at which the work vehicle is to be present after performing predetermined travel from the vehicle position of the work vehicle, a deviation calculator to calculate a deviation of the work vehicle at the estimated vehicle position from the target travel path, a target steering amount calculator to calculate a target steering amount based on the deviation, and an autonomous travel controller to control steering based on the target steering amount.

Abstract: A position detector is supported to be movable between a first position and a second position lower than the first position. A mounting stay is below the position detector when the position detector is in the first position, and, when the position detector is rotated together with the mounting stay from a state in which the position detector is in the first position, the position detector is moved to the second position and the mounting stay is positioned above the position detector in the second position and covers over the position detector so as to restrain the automatic steering control.

Abstract: A traveling work machine includes a position detector capable of obtaining position information of a machine body based on a positioning signal from a navigation satellite, an end determiner capable of determining the end of each of a plurality of instances of work travel, a start position calculator capable of calculating start positions Ls and Ls2, and a display capable of displaying information pertaining to the turning travel. When the end determiner determines the end of the work travel, the start position calculator calculates, based on the position information, the start position Ls2 on one of the left and right with respect to the travel direction of the machine body during the work travel, and the display displays guidance information guiding the turning travel to the start position Ls2.

Abstract: A tractor includes: a driver seat on which a driver can sit; a hood 5 provided in front of the driver seat; and an antenna unit that receives satellite positioning information. When viewed from the front, an upper end portion of a ROPS and at least part of the antenna unit overlap with each other.

Abstract: A working vehicle includes a steering device including a steering handle, a vehicle body to travel with either manual steering by the steering handle or automatic steering of the steering handle based on a traveling reference traveling line, and a controller to permit automatic steering based on steering angles of the steering device obtained when the vehicle body travels a predetermined distance while being steered by the manual steering.

Abstract: A working vehicle includes a vehicle body to travel, a steering handle to be turned to steer the vehicle body, and a steering switch to steer the vehicle body separately from the steering handle. The steering switch may be a switch to be operated in a pressing manner or in a sliding manner to steer the vehicle body. In addition, the steering switch may be arranged around the steering handle.

Abstract: A work vehicle includes a steering wheel on a rear side with respect to a display, in front of a driver seat, and that includes spokes and a ring-shaped portion connected to the spokes. An opening is between the spokes and the ring-shaped portion. The work vehicle further includes a steering controller to change a steering angle of a steerable wheel based on a wheel angle that is a rotation angle of the steering wheel about a wheel rotation shaft, and an adjuster to adjust a relationship between the wheel angle and the steering angle.

Abstract: A position detector is supported to be movable between a first position and a second position lower than the first position. A mounting stay is below the position detector when the position detector is in the first position, and, when the position detector is rotated together with the mounting stay from a state in which the position detector is in the first position, the position detector is moved to the second position and the mounting stay is positioned above the position detector in the second position and covers over the position detector so as to restrain the automatic steering control.

Abstract: A working vehicle includes an operator's seat, a vehicle body to travel selectively using either manual steering performed manually by the operator or automatic steering performed based on a position of the vehicle body detected by a position detector without manual operation by the operator, and a first operation actuator on a lateral side of the operator's seat to selectively start or terminate the automatic steering during rearward traveling of the vehicle body or to correct the position of the vehicle body during rearward traveling of the vehicle body.

Abstract: A control device for a work vehicle configured or programmed to travel autonomously includes a vehicle position calculator to calculate a vehicle position, a travel direction calculator to calculate a travel direction that is a front-back direction of the vehicle body, a steering state detector to obtain data on a steering state, a vehicle position estimator to calculate an estimated vehicle position at which the work vehicle is to be present after performing predetermined travel from the vehicle position of the work vehicle, a deviation calculator to calculate a deviation of the work vehicle at the estimated vehicle position from the target travel path, a target steering amount calculator to calculate a target steering amount based on the deviation, and an autonomous travel controller to control steering based on the target steering amount.

Abstract: A traveling work machine includes a position detector capable of obtaining position information of a machine body based on a positioning signal from a navigation satellite, an end determiner capable of determining the end of each of a plurality of instances of work travel, a start position calculator capable of calculating start positions Ls and Ls2, and a display capable of displaying information pertaining to the turning travel. When the end determiner determines the end of the work travel, the start position calculator calculates, based on the position information, the start position Ls2 on one of the left and right with respect to the travel direction of the machine body during the work travel, and the display displays guidance information guiding the turning travel to the start position Ls2.

Abstract: A working vehicle includes a steering device including a steering handle, a vehicle body to travel with either manual steering by the steering handle or automatic steering of the steering handle based on a traveling reference traveling line, and a controller to permit automatic steering based on steering angles of the steering device obtained when the vehicle body travels a predetermined distance while being steered by the manual steering.

Abstract: A controller for a work machine includes a steering control circuit, a memory, and a speed control circuit. The steering control circuit is configured to control a steering of the work machine to change a steering angle based on a travel route. The memory is to store a threshold angle. The speed control circuit is configured to control a speed of the work machine if the steering angle is equal to or larger than the threshold angle and if the steering control circuit does not control the steering.

Abstract: A tractor includes: a driver seat on which a driver can sit; a hood 5 provided in front of the driver seat; and an antenna unit that receives satellite positioning information. When viewed from the front, an upper end portion of a ROPS and at least part of the antenna unit overlap with each other.

Abstract: A working vehicle includes a vehicle body to travel, a steering handle to be turned to steer the vehicle body, and a steering switch to steer the vehicle body separately from the steering handle. The steering switch may be a switch to be operated in a pressing manner or in a sliding manner to steer the vehicle body. In addition, the steering switch may be arranged around the steering handle.

Abstract: A control apparatus for an automatic traveling vehicle includes a position sensor and circuitry. The position sensor is to detect a vehicle position of the automatic traveling vehicle. The circuitry is configured to control the automatic traveling vehicle to travel along a first route, a first turn route connected to the first route, a straight route connected to the first turn route, a second turn route connected to the straight route, and a second route connected to the second turn route in this order, and to calculate the straight route extending from a reference point on the first turn route to the second turn route such that the straight route is tangent to the second turn route.

Abstract: An automatic traveling work vehicle includes a memory to store work traveling information including information on work which a work device is configured to perform and on a state of a work field in which the automatic traveling work vehicle is configured to automatically travel along a target travel route. Circuitry is configured to calculate a vehicle position of the automatic traveling work vehicle, to calculate a track deviation of a vehicle body from the target travel route based on the target travel route and the vehicle position, to calculate a steering sensitivity based on at least one of the information on the work and the information on the state of the work field, and to calculate, based on the track deviation and the steering sensitivity, a steering control amount according to which the steering is controlled.