Abstract: An electric work vehicle includes: a carrier 32 in which a battery can be stored and a support portion 40 is provided; a carrier storage portion provided in a vehicle body and capable of holding the carrier 32; a guide portion 21, 22 that is capable of supporting, via the support portion 40, the carrier 32 operated so as to be lifted from the ground, in a state in which the carrier is lifted from the ground, and guiding the carrier 32 toward the carrier storage portion; and a positioning portion 42 configured to, when the carrier 32 placed on the ground is operated so as to be lifted and the support portion 40 has reached a position at which the support portion 40 can be supported by the guide portion 21, 22, stop the operation of lifting the carrier 32.

Abstract: A work vehicle capable of traveling on a public road and in a working field includes: a public road traveling determination unit configured to generate vehicle body position information regarding a position at which the vehicle body is located, determine based on the vehicle body position information whether or not the vehicle body is traveling on the public road, and output a determination result; and a vehicle speed limiter configured to limit a vehicle speed in accordance with the determination result.

Abstract: A power supply device for an electric work vehicle, including: a battery by which an electric work vehicle is drivable; a first connection unit for an internal inverter configured to convert DC power from the battery into AC power, and output the AC power to an internal electric device installed in the electric work vehicle; a second connection unit for an external inverter configured to convert DC power from the battery into AC power, and output the AC power to an external electric device; and a battery control unit connected to the first connection unit and the second connection unit, and configured to control charging of, and power supply from, the battery, wherein the battery control unit is configured to communicate with the external inverter side via the second connection unit to perform authentication regarding whether or not power supply to the external inverter is permitted.

Abstract: In a work vehicle, a pivot axis of an operating lever and a rotary axis of a potentiometer are located on a same axis. An interlocking mechanism includes an input part which inputs power of the operating lever following the operating lever about the pivot axis as a pivot, and an output part which is supported to a rotary operation shaft and outputs power of the input part to the rotary operation shaft. The input part and the output part are operably connected via a connecting pin.

Abstract: A work vehicle includes: a body; a travel device supporting the body; a travel driver configured to drive the travel device; a brake configured to lock and unlock the travel device; a deactivation operation tool manually movable to a first position, at which the brake is operable to be activated and deactivated, and a second position, at which the brake is kept deactivated; a position detector configured to detect that the deactivation operation tool is at the second position; and a notifier configured to provide, based on a result of the detection by the position detector, a notification that the deactivation operation tool is at the second position.

Abstract: A housing holding parts includes a plurality of outer circumferential plates connected with each other to form a first enclosed space, one or more of the outer circumferential plates having a total of two or more outer holes formed therein, and a gutter member connected to at least two outer circumferential plates, the gutter member having an inner hole formed therein, wherein a second enclosed space is formed by the outer circumferential plates and the gutter member, the outer holes communicate with the second enclosed space, and the inner hole is provided to be offset from each of the lines passing through each of the outer holes which are perpendicular to the outer circumferential plates in which the outer holes 8 are formed.

Abstract: A battery unit includes a positive relay switch, a negative relay switch, a first resistor disposed in a third wiring portion extending between a positive external terminal and a negative external terminal, a second resistor serially connected to a portion on more negative side than the first resistor, a third resistor disposed in a second wiring portion and connected in parallel with the negative relay switch, a potential difference detection section capable of detecting a first potential difference which is a potential difference between the portion of the third wiring portion on more negative side than the first resistor and a negative terminal and a failure determination section for determining a failure of the positive relay switch and the negative relay switch respectively, based on the first potential difference.

Abstract: The mower unit includes a mower deck having a top wall and side walls extending downwards from an outer circumferential edge of the top wall, a rotational shaft extending upwards through the top wall from an inside space formed by the top wall and the side walls, a cutter blade attached to a lower portion of the rotational shaft within the inside space and rotatable together with the rotational shaft, an electric mower motor having an output shaft that can rotatably drive the rotational shaft, and a flywheel rotatable in association with the rotational driving of the mower motor.

Abstract: A riding grass mower includes a driver seat 11 in a travel chassis 10, a mower deck 30 supported by the travel chassis 10, a rotary blade 20 in a glass-cutting space defined by side wall and a top plate 31 of the mower deck 30, a blade motor 4 configured to supply motive power to the rotary blade 20, and a blade motor control unit 55 configured to control the blade motor 4. The blade motor control unit 55 includes a main drive control unit 55a configured to rotate the rotary blade 20 forward, an auxiliary drive control unit 55b configured to rotate the rotary blade 20 backward, and a drive selection unit 55c configured to selectively operate the main drive control unit 55a and the auxiliary drive control unit 55b at a start of mowing with use of the rotary blade 20.

Abstract: A powertrain system includes a port injection internal combustion engine. A first start process is a process in which fuel is enclosed in a compression stroke cylinder when the engine is stopped, and based on a stored crank stop position, ignition is performed in a first cycle of the compression stroke cylinder upon engine start. A second start process is a process in which, based on the stored crank stop position, fuel injection is performed for an intake stroke cylinder while the engine is stopped, and based on the stored crank stop position, ignition is performed in the first cycle of the intake stroke cylinder upon engine start. When a catalyst temperature at the time engine start is requested is equal to or higher than a first threshold, a control device starts the internal combustion engine by at least one of the first start process and the second start process.

Abstract: In an electric work vehicle, a power feeding assembly which connects a battery device to a power controller unit so as to feed power includes a fixed connector which is fixed to the battery device and electrically connected to the battery device, a cable harness connected to a power controller unit, and a free connector which is connected to an end of the cable harness and connectable to a fixed connector, and a connecting operation tool is configured to be movable the free connector between the connecting position in which the free connector is connected to the fixed connector and the detaching position.

Abstract: Provided is an electric work vehicle having a simple configuration, yet allowing a hydraulic cylinder to function appropriately even in a low-temperature environment. An electric work vehicle includes a first hydraulic cylinder, a second hydraulic cylinder and a third hydraulic cylinder and includes also a hydraulic system for feeding work oil to these hydraulic cylinders and a traveling motor. The hydraulic system includes an oil heating circuit for heating the work oil using heat generated from the traveling motor.

Abstract: A mower unit includes: a mower deck including a top plate and a side wall; and a wind-around power transmission mechanism. The wind-around power transmission mechanism includes: an output pulley provided for the output shaft of an electric motor; three input pulleys each provided for a corresponding blade shaft; and a single power transmission band wound around the output pulley and the input pulleys and configured to run on a base plane parallel to the top plate.

Abstract: An electric travelling vehicle including: a motor controller configured to control an electric motor based on displacement of a steering operation part to a forward travel position, a neutral position, and a rearward travel position, a brake controller configured to bring an electromagnetic power-off brake into a released state or a braking state; and a travel state detector configured to detect a travelling state that is accompanied with the released state, a stopped state that is accompanied with the braking state, and a transit stopped state that is accompanied with the braking state.

Abstract: An electric work vehicle includes an electric work machine including a battery mounting unit on which a battery is detachably mountable; a battery housing unit supported by at least one wheel and configured to house the battery; and a battery carrier including the at least one wheel and a manual push handle configured to be manually pushed to move the battery housing unit. The battery housing unit is detachably mountable on the battery mounting unit for the battery to be mounted on the battery mounting unit, and the at least one wheel and the manual push handle are separable from the battery housing unit.

Abstract: An electric work vehicle includes: a battery pack that is arranged between a left rear wheel arranged outside of a left frame and a right rear wheel arranged outside of a right frame, the front end of the battery pack being located forward of an axle center of a rear wheel unit; a left motor that is arranged above the battery pack, in the periphery of the left rear wheel, receives a supply of power from the battery pack, and transmits rotational power to the left rear wheel; and a right motor that is arranged above the battery pack, in the periphery of the right rear wheel, receives a supply of power from the battery pack, and transmits rotational power to the right rear wheel.

Abstract: A stand for a charger includes an attachment portion attachable and detachable to and from the charger and a leg portion configured to be capable of supporting the charger with the charger being lifted up off the ground surface when the stand is attached to the charger.

Abstract: A mower unit 3 includes a rotational shaft extending upwards through a top wall of a mower deck, a cutter blade attached to a lower portion of the rotational shaft, a mower motor 4 having a rotor 43 disposed upward and a coil 42 disposed downward along an axial direction of an output shaft 41, a mount deck 5 having a horizontal mounting face for mounting the mower motor 4 in such a manner that the output shaft 41 assumes a vertical posture, the mount deck protruding outwards from a side wall of the mower deck, and a cooling arrangement 50 incorporated in the mound deck 5 for discharging heat of the mower motor 4.

Abstract: A lead-acid battery monitoring apparatus includes: sensor units attached to lead-acid batteries connected in series and/or in parallel; and a control unit capable of wireless communication connection with the sensor units. The control unit receives a setting as to whether to prohibit or permit alarm output for each of the lead-acid batteries.

Abstract: A storage battery monitoring apparatus includes: monitoring units attached to storage batteries connected in series and/or in parallel; and a management unit capable of wireless communication connection with the monitoring units. By using identification information of a specific monitoring unit included in a message broadcasted from the management unit to the monitoring units, communication between the management unit and the specific monitoring unit is established.