Kubota Corporation

Hosiden Corporation

Eiji Sato

Yoshikazu Togoshi

Akira Minoura

Kazuaki Nogami

Hiroshi Ema

Seiya Yoshida

Takahiro Shiraga

Fumio Ohta

Hironori Tsuchihashi

Hiroyuki Tada

Tomohisa Yamamoto

Akihito Mihara

Takashi Kumashiro

Kazuyoshi Kawamoto

Yuta Horibe

Takayuki Nagata

Masahiro Yamada

Yoshiyuki Esaki

Osami Fujiwara

Masato Asahara

Yoshihiro Ueda

Takafumi Komatsu

Akihito Sugio

Kazutomo Miyaguchi

Kiyotaka Miyauchi

A contactless power supply device includes a handle attachable and detachable with respect to a main body case at least partially covering a main body part including an electric unit, a power transmission module to be provided to protrude from the main body case, and having a power transmission coil electrified based on power supplied to the main body part, a power reception module housed in the handle to face the power transmission module when the handle is fixed to the main body case, and having a power reception coil contactlessly supplied with power via the power transmission coil, and a detection unit provided in the handle, driven based on the power supplied via the power reception module, and configured to detect whether the handle is being gripped.

Contactless power supply device for use with a handle and main body case

An electric device includes: an electric circuit; a power supply circuit configured to feed electric power to the electric circuit and stop the feed; and a housing containing the electric circuit and the power supply circuit. The power supply circuit is configured to, in response to a first operation performed from outside the housing while the power supply circuit is in an OFF state, the OFF state being a state in which the battery feeds no electric power to the electric circuit, transition to an ON state, the ON state being a state in which the battery continuously feeds electric power to the electric circuit even after an end of the first operation, and in response to a second operation performed while the power supply circuit is in the ON state, transition to the OFF state.

Electric device

In a riding-type mower, a vehicle body includes a rear portion in which a pair of right/left vehicle body frames extend in a front-rear direction relative to the vehicle body, with a gap therebetween in a lateral width direction. A mowing device is configured to discharge mown grass rearward relative to the vehicle body such that the mown grass falls onto the ground. A cover is provided in a bottom portion of the vehicle body, at a position that is rearward of the mowing device, and covers a gap between the pair of right/left vehicle body frames.

Riding-type mower

A work vehicle includes a cutter device for cutting plant in a field, a storage section for storing plant cut by the cutter device, an inclination angle sensor for detecting an inclination angle ((&#x3b8;d)) of the vehicle body, a display device for displaying the inclination angle detected by the inclination angle sensor, and a reporting device for reporting the inclination angle exceeding a permissible inclination angle ((&#x3b8;a)).

Work vehicle

A contactless power transfer apparatus includes an E-class amplifier having a coil configured to store an amount of energy for use in contactless power transfer and a field-effect transistor for controlling a current that flows in the coil, and an arrester provided between a drain terminal and a source terminal of the field-effect transistor and configured to be operated in response to application of a voltage having a voltage value lower than an absolute maximum rated voltage value between the drain and the source of the field-effect transistor.

Contactless power transfer apparatus

There is provided a secondary coil module receiving supply of electric power via a primary coil by contactless power transfer technique. The secondary coil module includes a core formed of magnetic material, the core having a tubular portion in the form of a tube and a bottom portion formed integral with the tubular portion in such a manner as to close an opening of the tubular portion formed at one axial end portion thereof, a storage battery accommodated within an accommodation space provided inside the tubular portion and configured to be charged by the power via the primary coil and a coil winding disposed outside the core and on the side of the bottom portion of the core.

Secondary coil module

In a contactless power supply mechanism, a power receiving unit for supplying power to an electric device includes a secondary coil and a power supplying unit for supplying power to the power receiving unit includes a primary coil. The primary coil includes a primary core formed of magnetic material and a length of winding wire wounded around the primary core. The secondary coil includes a bar-shaped secondary core formed of magnetic material, a length of winding wire wounded around the secondary core and a magnetic sheet attached to at least one of end faces of the secondary core. The magnetic sheet includes a close-contact portion placed in close-contact with the end face of the secondary core and a curved portion which extends outwards from the close-contact portion beyond an outer edge of the end face and whose normal line has a portion un-parallel with an axial direction of the secondary core.

Contactless power supply mechanism and secondary coil for contactless power supply mechanism

Provided is a compact secondary coil module that can be easily mounted in a terminal device side unit. The secondary coil module whose power for use in charging a storage battery by a contactless charging technique is supplied via a primary coil, includes the storage battery, a charging control circuit controlling charging of the storage battery, a tubular core made of magnetic material and covering an outer circumferential face of at least one of the storage battery and the charging control circuit, and a wire made of conductive material, the wire being connected to the charging control circuit and wound around the outer circumferential face of the core.

A working vehicle has a cooling fan provided on a first side of an engine to blow air to the engine; a muffler main body provided on a second side thereof in a position lower than an upper surface of a head cover of the engine; and an exhaust pipe exposed in a position facing an air blowing path of the cooling fan higher than the upper surface of the head cover of the engine to discharge exhaust from the muffler main body.

Working vehicle

A work vehicle includes a fixed hood covering a rear area of an engine compartment housing an engine and an engine accessory, a swing axis extending through the rear area of the engine compartment in a transverse direction of the vehicle, and a swing hood swinging around the swing axis between a closed position and an open position. The swing hood tucks the fixed hood inside the swing hood and thus covers the fixed hood in the open position, and covers a front area and a middle area of the engine compartment and overlaps with a front end portion of the fixed hood in the closed position.

A work vehicle includes a cooling fan, an engine, and a diesel particulate filter (DPF) purifying exhaust gas of the engine, placed under a hood in that order, beginning at the front. Exhaust gas from the engine is exhausted through an exhaust passage after passing through the DPF. The cooling fan supplies cooling air to the rear. The DPF is placed such that a length direction thereof follows a width direction of a vehicle body. The exhaust passage includes a first passage, a second passage, and a third passage. The first passage extends forward and upward from the DPF before extending along the length direction thereof on a front side of the DPF. The second passage extends downward from a downstream portion of the first passage. The third passage extends to the rear from a downstream portion of the second passage and also includes an exhaust outlet.

Work vehicle with diesel particulate filter

A spring support body is slidably supported on a support portion provided to a connecting member connected to a link mechanism, the spring support body supporting a side of a tension spring opposite to the side connecting the tension spring to a tension wheel body, the tension spring biasing the tension wheel body to a tension position, the tension wheel body being freely movable between a tension position and a tension release position. An operation tool slides the spring support body between the tension side and the loosened side of the tension spring, the operation tool being connected to the spring support body by being disposed such that the operation tool is positioned on a lateral exterior side of a cutting blade housing with respect to the connecting member.

Belt tensioning device for a riding type mower

A relay shaft is rotatably provided in a lateral direction of a vehicle body on a rear side of the vehicle body with respect to a mowing apparatus and on a front side of the vehicle body with respect to a left and right pair of rear wheel drive apparatuses. A pedal coupling rod extends in the front-rear direction of the vehicle body above the mowing apparatus and connects to a brake pedal and to the relay shaft. A left brake coupling rod extends in the front-rear direction of the vehicle body and connects to a left end of the relay shaft and to an operation portion of a left rear wheel brake. A right brake coupling rod extends in the front-rear direction of the vehicle body and connects to a right end of the relay shaft and to an operation portion of a right rear wheel brake.

Growing community of inventors

Sakai, Japan

Eiji Sato