Kubota Corporation

The Green Cross Corporation

Ddk Ltd.

Hirokazu Ito

Kazuo Koike

Yoshikazu Togoshi

Masahiro Inoue

Nobuyuki Yamashita

Yasuhiro Manji

Kazuaki Matsuda

Katsuhiko Uemura

Masahiro Yamada

Tomohiko Hisakuni

Akira Minoura

Takashi Fujii

Hiroki Nagai

Yoshitomo Fujimoto

Makoto Odagiri

Takashi Shibata

Kazuyuki Ozai

Takafumi Komatsu

Toshiki Kanai

Hironobu Nishihara

Ryo Matsumoto

Masayuki Akita

Koichi Yokota

Masahiro Izumi

Motosumi Shiotsuki

Yuto Fujii

Junichi Yamanaka

Kazutomo Miyaguchi

Kazuhiro Ochi

Nozomu Akiyama

Yuto Akai

Sadao Yabushita

Masatake Takai

Shinji Tomioka

Koei Ikariya

Kohichi Furuta

Miyuki Ikeda

Takumi Yamamoto

A cooling devicecirculates and supplies a refrigerant to a first motor, a second motor, a first inverter, and a second inverter. The cooling devicecirculates and supplies the refrigerant in such a manner that the refrigerant passes through the first inverterand the second inverterbefore passing through the first motorand the second motor

Work vehicle

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.

Electric work vehicle

An electric motorincludes a motor sectionand an output shaftprotruding from the motor section. The output shaftsupports a rotary fan. The rotary fanis drivable by the output shaftto rotate to supply cooling air to the motor section

Mowing device with a rotary fan and related features

A riding grass mower includes a driver seatin a travel chassis, a mower decksupported by the travel chassis, a rotary bladein a glass-cutting space defined by side wall and a top plateof the mower deck, a blade motorconfigured to supply motive power to the rotary blade, and a blade motor control unitconfigured to control the blade motor. The blade motor control unitincludes a main drive control unitconfigured to rotate the rotary bladeforward, an auxiliary drive control unitconfigured to rotate the rotary bladebackward, and a drive selection unitconfigured to selectively operate the main drive control unitand the auxiliary drive control unitat a start of mowing with use of the rotary blade

Riding grass mower with rotary blade drive selection unit

An electric work vehicle includes: a battery accommodating portion that is provided in the vehicle body and accommodates a battery; a first connector provided on the battery accommodating portion; a second connector provided on the battery; and an operating tool for moving the battery and the second connector, and switching from a pre-attachment orientation in which the second connector opposes the first connector to an attachment orientation in which the second connector is joined to the first connector.

Electric work vehicle and mower unit

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.

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.

Power supply device for electric work vehicle

An electric powered work vehicle is to be configured so that holding of the battery at the storage position can be carried out easily at the time of attachment of the battery. There is provided guide mechanism for movably guiding the battery while supporting it along a horizontal direction between a storage position and a detachment position located away from the storage position along the horizontal direction. There is provided a holding mechanism configured to be automatically operated to a holding state capable of holding the battery at the storage position when the battery is moved to the storage position along the guide mechanism. There is provided a releasing operational portion manually operable to render the holding mechanism to a releasing state for allowing movement of the battery to the detachment position.

Battery attachment mechanism

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.

Stand for charger

A movement assisting tool () includes an attachment portion () that can be attached to and removed from a main body portion () of a battery unit (), leg portions () that are coupled to the attachment portion () and extend from the attachment portion (), and moving wheels () that are supported by extension portions of the leg portions (). In a state where the attachment portion () has been attached to the main body portion () of the battery unit () and the moving wheels () are touching the ground, the battery unit () can be kept in an inclined orientation in which the wheels () are touching the ground and ground contact portions () are raised above the ground.

Movement assisting tool

A cutter blade for a mower is disposed inside a housing of the mower and rotatably driven about a vertical axis. The cutter blade includes a blade body a blade portion provided at least at a part of a rotational direction-wise front end portion of the blade body, and a wind generating portion provided at least at a part of a rotational direction-wise rear end portion of the blade body, the wind generating portion extending more upwards than the blade portion. A thickness of the wind generating portion at the rotational direction-wise rear end portion is smaller at least partially than a thickness of the remaining part of the wind generating portion.

Cutter blade of mower

In an electric grass cutting machine relating to the present invention, an electric motor for driving a traveling device having a pair of left and right front wheels and a pair of left and right rear wheels and a gear transmission for speed-changing output from the electric motor and transmitting the resultant power to the traveling device are disposed between the left and right rear wheels and arranged one after the other in the front/rear direction at positions laterally of a conveying duct for guiding cut grass pieces from a rear discharge type mower device to a grass collecting container supported to a rear portion of a machine body frame.

Electric grass cutting machine

An electric work vehicle includes: a carrierin which a battery can be stored and a support portionis provided; a carrier storage portion provided in a vehicle body and capable of holding the carrier; a guide portionthat is capable of supporting, via the support portion, the carrieroperated so as to be lifted from the ground, in a state in which the carrier is lifted from the ground, and guiding the carriertoward the carrier storage portion; and a positioning portionconfigured to, when the carrierplaced on the ground is operated so as to be lifted and the support portionhas reached a position at which the support portioncan be supported by the guide portion, stop the operation of lifting the carrier

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.

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 holesare formed.

Growing community of inventors

Sakai, Japan

Hirokazu Ito