Abstract: A tractor including a vehicle body, a hood at a front portion of the vehicle body, a traveling device to support the vehicle body so that the vehicle body is capable of traveling, a driving motor to drive the traveling device, a PTO shaft to transmit power to a working machine, a fuel cell system including a fuel cell and operable to supply electricity generated by the fuel cell to the driving motor, and a battery to store electricity generated by the fuel cell. The fuel cell and the battery are disposed inside the hood.

Abstract: Provided is a bending angle calculation method capable of saving a worker time and effort. The bending angle calculation method includes: an image capturing step (S1) of capturing an image of a pipe in which a first pipe and a second pipe are joined together by a joint; a derivation step (S3) of deriving, from the image, a laying direction straight line corresponding to a laying direction of the pipe; and a calculation step (S4) of calculating, as a bending angle at the joint, a crossing angle between a laying direction straight line of the first pipe and a laying direction straight line of the second pipe.

Abstract: A working machine includes a steering, a steering post supporting the steering, and a steering column covering the steering post. The steering column has a switch panel arranged below the steering on an upper surface of the steering column, and the switch panel has a first switch group including a plurality of switches arranged to have an inclining configuration in plan view where the switches align in a machine outward direction as shifting forward, the first switch group being arranged on both sides of the steering post in a machine width direction.

Abstract: An operation device of a work vehicle includes a position lever to set a height of a work device, a sensitivity adjustment lever to adjust an up/down sensitivity of the work device, and an up/down lever to selectively change a working state and a non-working state, the working state being a state in which the work device is positioned at the height set by the position lever, the non-working state being a state in which the work device is positioned above the set height. The up/down lever is located rearward of the position lever and the sensitivity adjustment lever.

Abstract: A self-driving work vehicle including a traveling apparatus, a vehicle body supported by the traveling apparatus on ground, a variable traveling power supply apparatus configured to supply rotational drive power to the traveling apparatus, a travel operation interface configured to adjust a rate of the rotational drive power, a parking brake provided for a transmission shaft of the variable traveling power supply apparatus, a rotation detector configured to detect rotation of the traveling apparatus or the transmission shaft, and a controller. The controller is configured or programmed to control the parking brake to a braking state or a non-braking state by a parking brake control module, and manage the braking state or the non-braking state as a vehicle body state by a condition management module. The braking state and the non-braking state are operating states of the parking brake.

Abstract: An electric work vehicle includes a body frame, a battery above the body frame, a motor drivable on electric power supplied by the battery, a travel device drivable by the motor, and a cooling fan positioned forward of the battery to send cooling air to the battery, wherein the body frame and the battery define a ventilation space therebetween, and the cooling fan extends in an up-down direction of a machine body to face both the battery and the ventilation space.

Abstract: Achieved is a determination method which enables accurate determination as to a bending angle. A bending angle determination method includes: an input reception step of receiving, with respect to a joint at which a first pipe and a second pipe are joined together, inputs of respective parameters of a plurality of predetermined positions set in a circumferential direction of the first pipe; and a bending angle determination step of determining whether a bending angle at the joint is appropriate, on the basis of the parameters that have been inputted in the input reception step.

Abstract: A work vehicle includes a cover having a center cover portion, a first side cover portion, and a second side cover portion. The center cover portion includes a punching metal and has a substantially rectangular shape. A first side and a second side of the rectangular shape face each other in a width direction, and a third side and a fourth side of the rectangular shape face each other in a front-rear direction. The first side cover includes a punching metal, has a substantially rectangular shape, is connected to the center cover portion at the first side, and is inclined downward in the height direction relative to the center cover portion. The second side cover includes a punching metal, has a substantially rectangular shape, is connected to the center cover portion at the second side, and is inclined downward in the height direction relative to the center cover portion.

Abstract: A working machine includes a machine body, an engine on the machine body, a motor/generator to perform an assisting action in which the motor/generator functions as a motor to assist the engine in driving and an electricity generating action in which the motor/generator functions as a generator to generate electricity using power from the engine, a working device to function using power from the engine and the motor/generator, a work operation actuator for operation of the working device, an action controller to cause the assisting action to be performed when a rotation speed of the engine is equal to or less than a first rotation speed and cause the electricity generating action to be performed when the rotation speed of the engine is equal to or greater than a second rotation speed greater than the first rotation speed, and a speed controller to change the first rotation speed or the second rotation speed according to an operation amount of the work operation actuator.

Abstract: An electric working machine includes battery packs, an actuated device to be actuated by electricity supplied from the battery packs, and a controller to control discharging of the battery packs based on remaining charge levels of the battery packs. The controller is configured/programmed to select one of the battery packs as a discharging battery pack, and perform a limiting process to limit electricity supplied from the discharging battery pack to the actuated device when the remaining charge level of the discharging battery pack is less than a limit threshold, and cause the limit threshold and/or content of the limiting process to differ between when one or more of the battery packs that are other than the discharging battery pack have a remaining charge level of a second threshold or more and when any of such battery packs do not have a remaining charge level of the second threshold or more.

Abstract: 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.

Abstract: A working machine includes a controller device to set an allowable-stroke range of the arm cylinder moving the arm toward the boom depending on a turn position of the boom such that a shortest trajectory distance that is a shortest distance between the boom cylinder and a turn trajectory of the tip end portion of the bucket is kept at a predetermined value even when the turn position of the boom changes, in a case where the boom is turned in a direction separating from a boom reference position.

Abstract: A working vehicle includes a traveling vehicle to autonomously travel on a target traveling route, a working device attached to the traveling vehicle, an offset acquirer to acquire an offset amount and offset direction in a vehicle width direction between a width directional center of the traveling vehicle and a predetermined point in the working device, and a traveling position corrector to correct, based on the offset amount and the offset direction acquired by the offset acquirer, a traveling position of the traveling vehicle so that the predetermined point is located on the target traveling route.

Abstract: A working vehicle includes a traveling vehicle connectible to a working device, a position detector to detect a position of the traveling vehicle, an autonomous traveling controller configured or programmed to perform autonomous steering of the traveling vehicle based on a scheduled traveling route and the position of the traveling vehicle detected by the position detector and to control a traveling speed of the traveling vehicle corresponding to the scheduled traveling route, and a distance detector to detect a detected distance between the working device and a worker who works behind the working device. The autonomous traveling controller is configured or programmed to change the traveling speed based on the detected distance.

Abstract: A continuously variable powertrain device for a work vehicle includes a hydraulic static transmission to output a continuously shifted motive power while continuously varying a velocity of a motive power received from an engine, a planetary transmission to receive the motive power from the engine and the continuously shifted motive power and to output a compound motive power, a pressure detector to detect a hydraulic pressure in a closed circuit of the hydraulic static transmission, a planetary clutch mechanism to switch a shift level of the planetary transmission, and a powertrain controller to control actuation of the hydraulic static transmission and the planetary transmission based on a shift command.

Abstract: In order to accurately detect a posture angle of a swivel section even when a disturbance acceleration occurs due to the movement of the swivel section, a swivel work machine includes: a swivel section; at least one inertial sensor that is disposed on the swivel section and that is configured to calculate a posture angle of the swivel section on the basis of an angular velocity and an acceleration; a first operation detection section as a detection section configured to detect an operation of causing the swivel section to move; and an IMU instruction section as an output section configured to, in a case where an operation of causing movement has been detected, output a signal corresponding to the operation, to the at least one inertial sensor.

Abstract: Provided is a work machine which makes an outside noise less likely to enter a cabin of the work machine. The work machine includes: a machine body; a footplate installed on the machine body; and a cabin installed on the footplate. The cabin has, at a bottom portion of a peripheral wall of the cabin, a mounting portion extending toward an inner side of the cabin, and is fixed to the footplate by screwing the mounting portion to an outer edge portion of the footplate in a state where the mounting portion is in contact with the outer edge portion. A sealing material is disposed between the mounting portion and the outer edge portion in a state where the sealing material elastically deforms.

Abstract: A communication system of an industrial machine includes an in-vehicle network, an information communication network, and a communication device of an information collecting unit. The in-vehicle network N1 performs data communication in a plurality of electronic devices 7 mounted on the industrial machine (backhoe 1). The information communication network is an external network of the backhoe and is a network different from the in-vehicle network. The communication device connects the in-vehicle network to the information communication network. The communication device 30C transmits the in-vehicle data D when data communication is performed by the plurality of electronic devices 7 in the in-vehicle network N1 to the information communication network N. As a result, the in-vehicle data configured via the in-vehicle network in the backhoe can be transmitted without any change to the information communication network outside the backhoe.

Abstract: A work vehicle includes: a body; a winch; and an attachment unit configured to attach the winch to the body and including: at least one bracket on the body; and a winch mount which is attachable to and detachable from the at least one bracket and to which the winch is fixed.

Abstract: In order to appropriately illuminate an image-capturing region of a rear camera and a field of view of an operator and to improve workability under a dark environment, a work machine includes: a machine body; a cabin installed on the machine body; an engine installed in a rear portion of the machine body; a hood covering the rear of the engine in a manner such that the hood is openable and closable; a counterweight provided on a lower side of the hood; a rear light which is installed at a rear upper portion of the cabin and which is configured to illuminate a region lying behind the machine body; and a rear camera which is disposed on the hood and which is configured to take an image of the region lying behind the machine body.