Kubota Corporation

Sumitomo Chemical Company, Limited

Junichi Ishikawa

Minoru Hiraoka

Takayuki Wakamatsu

Tohru Inoue

Yusuke Ida

Miyuki Iguchi

Koji Hagiya

Koichi Saito

Yukifumi Yamanaka

Masashi Komatsu

Shunya Takase

Norihisa Ohe

Mitsunobu Kawamura

Takuya Tamai

Yuta Honda

Shinsuke Kotani

Ryota Imanishi

Kentaro Kobayashi

Yuma Ikeda

Ryota Yamagishi

Katsutoshi Jinnouchi

Ryota Niki

Yuhei Hazawa

Kaichiro Yoshii

Taichi Okumura

Tomohiro Shimazaki

A work vehicle includes: a body; a plurality of travel wheelsat front and back portions of the bodyon each of left and right sides; a plurality of holder mechanisms A held by the bodyand holding the respective travel wheelsin such a manner as to be capable of moving the travel wheelsindependently of one another relative to the body; a detector B configured to detect a state of a travel surface; and a controller C configured to, based on the state that the detector B has detected, control the holder mechanisms A to move the travel wheelsrelative to the body

Work vehicle

A work machine includes a front wheel, a rear wheel, an intermediate wheel between the front wheel and the rear wheel, and a transmission to receive a driving force from a drive source and transmit the driving force to the intermediate wheel and at least one of the front wheel or the rear wheel that is drivable as a driving wheel. The intermediate wheel has an outside diameter smaller than an outside diameter of the driving wheel.

Work machine

A plurality of traveling wheels are supported via expandable/contractible tubular support members to a vehicle body frame. A hydraulic operation type vehicle height adjustment mechanism is provided for each one of the traveling wheels, the vehicle height adjustment mechanism being capable of switching a relative height of the traveling wheel relative to the vehicle body frame within a predetermined length range by expanding/contracting the support member by a hydraulic cylinder. There are provided a hydraulic control valve capable of controlling feeding state of work oil to each one of the plurality of hydraulic cylinders, a controlling section for controlling an operation of the hydraulic control valve to bring the vehicle body to a target state via vehicle height adjustment by the hydraulic cylinder in response to a change in the posture of the vehicle body and a plurality of accumulators connected oil chambers of the respective plurality of hydraulic cylinders.

In a riding work vehicle, power of an engine is transmitted to a traveling wheel via a horizontally oriented transmission shaft and a vertically oriented transmission shaft. The traveling wheel is supported to be changeable in direction about a rotational axis of the vertically oriented transmission shaft. Each of the vertically oriented transmission shaft and a vertically oriented transmission case is provided as an inner/outer double structure expandable/contractible in association with sliding movement thereof. The vertically oriented transmission case is supported to be pivotable together with the traveling wheel. There is provided a vehicle height adjustment mechanism capable of switching, in a plurality of steps, a relative height of the traveling wheel relative to a vehicle body frame.

Riding work vehicle

The present invention provides a new production method for a chlorobenzene compound. Specifically, the present invention provides a production method in which the compound represented by formula (1) (in the formula, Xrepresents a halogen atom) and chlorine are reacted in the presence of a Br&#xf8;nsted acid, thereby obtaining the chlorobenzene compound represented by formula (2) (in the formula, Xrepresents the same as above).

Chlorobenzene compound production method

A work vehicle includes a vehicle body, a plurality of traveling devices disposed on the right and left sides on the front and rear sides of the vehicle body respectively, a plurality of bending link mechanisms configured to liftably support each one of the traveling devices to the vehicle body and a plurality of drive operating devices capable of changing the posture of each one of the plurality of bending link mechanisms. The vehicle body is split into a front side body section and a rear side body section. The front side body section and the rear side body section are configured to be bendably pivotable relative to each other via a pivot interlocking mechanism.

The present invention provides an effective production method for a pyridone compound. More specifically, the present invention provides a production method comprising: a step of reacting the compound represented by formula (1) (in the formula, Xand Xeach independently represent a halogen atom, Rrepresents a hydrogen atom, an amino group, or a group represented by NHCOR, and Rrepresents a C1-C5 alkyl group) with 4 to 10 times by mass, with respect to the compound represented by formula (1), of the compound represented by formula (2) (in the formula, Rrepresents the same as described previously), in the presence of at least one of a tri(C1-C8 alkyl)amine and an alkali metal acetate, at a temperature of 100&#xb0; C. or higher to obtain the compound represented by formula (3) (in the formula, X, Xand Rrepresent the same as described previously, Rrepresents a hydrogen atom or an NHCORgroup); and a step of hydrolyzing the compound represented by formula (3), to obtain the pyridone compound represented by formula (4) (in the formula, X, Xand Rrepresent the same as described previously).

Pyridone compound production method

A work vehicle includes a plurality of traveling devices for driving traveling, a plurality of articulated link mechanisms having at least two or more joints and supporting the plurality of traveling devices to a vehicle body, with allowing the plurality of traveling devices to be elevated/lowered independently of each other, a driving mechanism capable of changing respective postures of the plurality of articulated link mechanisms independently of each other, and a plurality of turning mechanisms configured to support the respective plurality of the articulated link mechanisms, with allowing the link mechanisms to be orientation-changeable about a vertical axis.

A work vehicle including: a first link having one end portion supported by a vehicle body so as to be pivotable; a second link having one end portion pivotally coupled to the other end portion of the first link so as to be pivotable, and another end portion that supports a travel wheel; a first hydraulic cylinder capable of changing a swing posture of the first link; and a second hydraulic cylinder capable of changing a swing posture of the second link relative to the first link. The action of the first hydraulic cylinder is controlled such that a swing position of the first link is located at a target position, based on the result of detection performed by a position detection sensor, and the action of the second hydraulic cylinder is controlled such that thrust has a target value, based on the results of detection performed by pressure sensors.

A work vehicle includes a vehicle body, a plurality of traveling devices for driving traveling, a plurality of bending link mechanisms supporting the plurality of traveling devices to the vehicle body with allowing the plurality of traveling devices to be elevated/lowered independently of each other, a driving mechanism capable of changing respective postures of the plurality of bending link mechanisms independently of each other, and an idle wheel freely rotatably supported to an intermediate bending portion of each one of the plurality of bending mechanisms.

A work vehicle includes a plurality of traveling devices driven for traveling, a plurality of articulated link mechanisms having a plurality of links pivotally coupled to each other to provide two or more joints and configured to independently support the traveling devices to a vehicle body with allowing lifting/lowering of the traveling devices independently relative to the vehicle body, and a plurality of hydraulic cylinders capable of changing respective postures of the plurality of links included in the articulated link mechanisms. A first link located at a position nearest the vehicle body is supported to be pivotable about a body side coupling portion. A first hydraulic cylinder for operating the first link has its cylinder tube side pivotally coupled to a coupled portion on the side of the vehicle body and has its piston rod side pivotally coupled to a coupled portion on the side of the first link.

A work vehicle includes: a vehicle body; a plurality of traveling devices located on both right and left sides of the vehicle body; a plurality of bending link mechanisms that support the respective traveling devices on the vehicle body such that the traveling devices can be individually raised or lowered; and a plurality of drive mechanisms capable of individually changing the posture of the bending link mechanisms. The drive mechanisms change the posture of the bending link mechanisms while maintaining a state in which intermediate bending portions of the bending link mechanisms bend toward an intermediate side in a front-rear direction of the vehicle body.

Method for producing perfluoroalkanesulfonyl phenol compounds

A compound represented by formula (3): (wherein Rrepresents a C1-C6 alkyl group optionally having one or more halogen atoms, Rrepresents a C1-C6 alkyl group, and m represents an integer of 0 to 3)can be produced by reacting a C1-C6 alkanesulfinic acid salt optionally having one or more halogen atoms with a compound represented by formula (2): (wherein Rand m are as defined above)in the presence of a protonic acid.

Method for producing 2-amino-4-substituted phenol

A compound depicted by the formula below, or a pharmaceutically acceptable salt or solvate thereof. 

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Osaka, Japan

Junichi Ishikawa