Kubota Corporation

Tetsuo Ishioka

Yasunobu Yamaue

Hiroya Hanano

Tomeaki Tama

Akira Tsuda

Tomoyuki Nomura

Taichi Fujihara

Manabu Yamanishi

Syunryou Hayashida

Hisao Kawagoe

A variable displacement hydraulic motor having a swash plate angle adjusting structure. This hydraulic motor has a main case, a rotary shaft rotatably supported in the main case, a plurality of cylinder blocks rotatable with the rotary shaft and including axial plungers, a swash plate member for contacting distal ends of the plungers, pivot shafts for pivotally connecting the swash plate member to the main case such that the swash plate member has a pivoting angle adjustable relative to the main case, and a first and a second hydraulic cylinders arranged at opposite sides of the pivot shafts as seen in a direction parallel to the rotary shaft. The first and second hydraulic cylinders are secured in a region of the main case opposed to the cylinder blocks across the swash plate member. The hydraulic cylinders are operable to contact the swash plate member to adjust the pivoting angle thereof.

Structure for adjusting swash plate angle of a variable displacement

An offset type tractor with attachment of a first working implement longitudinally between front and rear wheels and of a second working implement rearwardly of the rear wheels, with the possibility of separate, independent maneuvering as well as common, simultaneous maneuvering modes of raising and lowering the first and the second implements. A mechanism for raising and lowering the first implement is disposed so as not to impair a clear front view from the offset type tractor.

Offset type tractor

An offset type tractor having a driving assembly such as an engine and a transmission case, and a supporting frame therefor are eccentrically disposed at either side with respect to the center line of the tractor body width, while a control wheel and a driver's seat are disposed on the center line of the tractor body width. A control wheel, a supporting post of a turned structure for supporting the control wheel, and an adjusting structure for adjusting the control wheel in the direction close to and away from the driver.

An offset type tractor, especially for agricultural work, comprising a structural unit including an engine and transmission casing directly connected to the engine, the unit being offset to one lateral side of the longitudinal center line of the tractor. The rear drive wheels of the tractor are mounted on the transmission casing. A reinforcement frame is securely affixed on a continuing lateral surface both of the engine and the transmission casing, on the side thereof nearer to the longitudinal center line of the tractor.

Growing community of inventors

Wakayama, Japan

Tetsuo Ishioka