Kubota Corporation

Tsuyoshi Gono

Susumu Takeoka

Keiji Takahashi

Yuji Hirase

Hiroshi Miyake

Ryosuke Kinugawa

Manabu Togo

Norita Tottori

Tatsuya Sakai

Atsushi Jinnai

Naoya Okamoto

Ryo Wataya

Naoya Nihei

Kazutaka Fujimoto

Ryuji Kataoka

Ryoma Iwase

Ryosuke Tanaka

Hidetoshi Hana

Junichi Yuasa

Takuya Nishikubo

Shusaku Yamaguchi

Yuki Kubota

Ryuji Kitagawa

Keita Ono

Kazuma Ishihara

Yoichi Sugihara

Ryuzo Fujita

Tsubasa Kawazoe

Masahiro Sakaguchi

Shota Nakano

Yoshiaki Hiruta

Atsushi Mima

Katsuhiko Watanabe

A management system includes a working vehicle and a server. The working vehicle includes a working device, a vehicle body capable of traveling by either automatic steering based on a reference line or manual steering, a position detector to detect a position of the vehicle body, a first memory to store, in a case where the vehicle body is automatically steered, correspondence information in which setting information of the working vehicle and position information of the vehicle body are associated with each other, and a first communicator to transmit the correspondence information stored in the first memory to the server. The server includes a second communicator to receive the correspondence information transmitted by the first communicator, and a second memory to store the correspondence information received by the second communicator.

Management system

A support system for a working vehicle includes a working vehicle including a vehicle body to travel selectively under manual steering or automatic steering, a controller, and a communicator, the controller is configured or programmed to define a planned travel line for and control the automatic steering based on a reference line, the communicator receiving a replacement line for replacing the reference line, and a server to transmit the replacement line to the communicator. The controller includes a status acquirer to acquire a status of a device provided in or on the working vehicle, and is configured or programmed to, in accordance with the status acquired by the status acquirer, switch between a first mode in which the controller replaces the reference line with the replacement line transmitted from the server and a second mode in which the controller does not replace the reference line with the replacement line.

Support system for working vehicle

A work vehicle includes: a body; left and right front wheels provided for the body; and left and right rear crawler units provided for the body. The rear crawler units each include: a drive wheel provided for a rear axle of the work vehicle; a front idler wheel forward of the drive wheel; a rear idler wheel backward of the drive wheel; a plurality of roller wheels between the front idler wheel and the rear idler wheel; a crawler belt wound around the drive wheel, the front idler wheel, the rear idler wheel, and the plurality of roller wheels; a track frame swingable about a swing shaft that extends in a left-right direction of the body and holding the front idler wheel, the rear idler wheel, and the plurality of roller wheels; and a position change mechanism configured to move the swing shaft in a front-back direction of the body.

Work vehicle

A work vehicle includes a diesel engine, a heater to heat a gas to be supplied to a combustion chamber of the diesel engine, and a controller to execute an afterglow routine to cause the heater to operate. The controller is configured or programmed to execute the afterglow routine in response to the diesel engine being started, an elapse of a predetermined stop time since an end of a previous execution of the afterglow routine, and the work vehicle being in a warming-up state.

A work vehicle includes: a body frame; a front weight at a front end portion of the body frame; a support mechanism supporting the front weight in such a manner that the front weight is movable in a front-back direction relative to the body frame; and a drive actuator configured to move the front weight in the front-back direction relative to the body frame between (i) a back position, at which the front weight is close to the body frame, and (ii) a front position, at which the front weight is far from the body frame.

A working vehicle includes: a vehicle body provided with a traveling device; a hydraulic pump including a swashplate configured to change an output of the hydraulic pump according to a swashplate angle; a traveling motor including an output shaft having a rotation speed variable according to the output of the hydraulic pump and capable of transmitting power of the output shaft to the traveling device; an angle detector configured to detect the swashplate angle that is an angle of the swashplate; and a swashplate control unit configured to control the swashplate angle on the basis of control information relating to control of the swashplate angle and an actual swashplate angle that is the swashplate angle detected by the angle detector.

Working vehicle

The work vehicle includes a vehicle body provided with a travel device; a prime mover provided in the vehicle body; a transmission device capable of speed-changing a driving force from the prime mover and transmitting the driving force to the travel device; a transmission case housing the transmission device and being filled with lubricating oil; and a controller capable of switching between a warm-up operation mode in which a gear of the transmission device is rotated in a state in which transmission of power from the transmission device to the travel device is blocked and a travel operation mode in which the gear is rotated in a state in which the power is transmitted from the transmission device to the travel device.

A work vehicle includes a vehicle body provided with a travel device; a prime mover provided in the vehicle body; a transmission device capable of speed-changing a driving force from the prime mover and transmitting the driving force to the travel device; a transmission case housing the transmission device and being filled with lubricating oil; and a control device capable of switching between a warm-up operation mode in which a gear of the transmission device is rotated in a state in which transmission of power from the transmission device to the travel device is blocked and a travel operation mode in which the gear is rotated in a state in which the power is transmitted from the transmission device to the travel device.

A work vehicle includes an engine, a transmission to change a received rotational force to a rotational force at a gear ratio that corresponds to a desired vehicle speed and output the changed rotational force, a first operating tool to change the rotation speed of the engine and a deceleration rate of the transmission, a rotation speed controller to control the rotation speed of the engine based on an input provided to the first operating tool, and a second operating tool to receive a holding instruction to hold the rotation speed of the engine constant. In response to the holding instruction being inputted to the second operating tool, the rotation speed controller is configured or programmed to disable control of the rotation speed of the engine which control is based on the input provided to the first operating tool, and hold the rotation speed of the engine constant in accordance with the holding instruction.

Work vehicle, control method, and recording medium

A PTO shaft driving device in a working machine, includes a parking switch to detect parking of a vehicle body, a first switch located on a manipulator located on the vehicle body to output a PTO shaft control command that is either a driving command to drive a PTO shaft located on the vehicle body or a stopping command to stop the PTO shaft, a second switch located at a position different from the manipulator to output a PTO shaft control command that is either a driving command to drive the PTO shaft or a stopping command to stop the PTO shaft, a first permission switch to selectively permit or prohibit a stationary work when the parking switch detects the parking, and a controller configured or programmed to control driving of the PTO shaft. The controller is configured or programmed to selectively drive or stop the PTO shaft according to the PTO shaft control command from the first switch or the second switch when the stationary work is permitted by the first permission switch.

PTO shaft driving device in working machine

A work vehicle includes a hydrostatic stepless speed changer device configured to speed-change driving power of an engine steplessly, a plurality of planetary gear speed changer devices configured to speed-change the driving power speed-changed by the stepless speed changer device, a plurality of clutch mechanisms corresponding to the plurality of planetary gear speed changer devices in order to take off the driving powers from these plurality of planetary gear speed changer devices individually, and a traveling speed changer device for speed-changing and transmitting the driving powers transmitted from the plurality of clutch mechanisms to a traveling mechanism. The plurality of planetary gear speed changer devices the plurality of clutch mechanisms and the traveling speed changer device are accommodated in a transmission case.

A working machine includes a machine body capable of traveling, a working device to be attached to the machine body, a steering handle provided to the machine body and capable of being rotatably operated, an assist grip attached to the steering handle to assist a rotating operation of the steering handle, and an operation tool provided to the assist grip to operate devices provided to the machine body.

Working machine

A display device for a working machine, includes: a plurality of candidate boxes in which candidate setting information to be set to the working machine is represented, the candidate boxes being displayed on a screen; and a contents display portion in which a setting item relating to the working machine is displayed. The display device includes a display control portion to move a display box to a position corresponding to the contents display portion in performing the setting to the working machine, the display box being one of the plurality of candidate boxes in which candidate setting information corresponding to the setting is displayed.

A drive device for a PTO shaft includes a parking switch to detect a parking state of a vehicle body, a permission switch constituted of a self-returning switch and connected to the parking switch, the permission switch being configured to be switched to permit driving a PTO shaft, the PTO shaft being configured to be driven by a power of a prime mover disposed on the vehicle body, and a first switch device to be switched to enable the PTO shaft to be driven when the permission switch is switched to permit driving the PTO shaft under a state where the parking switch detects the parking state of the vehicle body.

Drive device for PTO shaft of working machine

A working machine has a display device including: an area display portion to display a setting area for setting the first priority value, the second priority value, and the third priority value; a first axis display portion including a first scale portion indicating the first priority value depending on a distance from the reference point; a second axis display portion including a second scale portion indicating the second priority value depending on a distance from the reference point; a third axis display portion including a third scale portion indicating the third priority value depending on a distance from the reference point; and a marker display portion to be indicated in a partial area corresponding to at least two of the first axis display portion, the second axis display portion, and the third axis display portion.

Growing community of inventors

Osaka, Japan

Tsuyoshi Gono