Kubota Corporation

Kenji Kato

Keishiro Nishi

Masao Takagi

Masashi Osuga

Satoshi Machida

Atsushi Shinkai

Yasunobu Nakatani

Isamu Yamanishi

Isamu Morimoto

Masaaki Hama

A work vehicle includes an engine, a PTO shaft driven by power from the engine, an operator's seat, an operator's presence sensor for detecting presence/absence of an operator at the operator's seat, and an automatic engine stop unit operable to automatically stop the engine in response to detection of the operator's absence at the operator's seat. The work vehicle includes a utility member for the vehicle selectively movable between a use position and a non-use position, a non-use state detecting sensor for detecting movement of the utility member to the non-use position, and an override unit operable to override the automatic engine stop function of the automatic engine stop unit, the override unit providing an override signal to the automatic engine stop unit in response to detection by the non-use state detecting sensor of the movement of the utility member to the non-use position.

Work vehicle having overridable automatic engine stop circuit

A work vehicle has an engine (), a PTO shaft () driven by power from the engine, an operator's seat (), an operator's presence sensor () for detecting presence/absence of an operator at the operator's seat, and an automatic engine stop unit () operable to automatically stop the engine in response to detection of the operator's absence at the operator's seat. The work vehicle includes a utility member (A) for the vehicle selectively movable between a use position and a non-use position, a non-use state detecting sensor () for detecting movement of the utility member to the non-use position, and an override unit () operable to override the automatic engine stop function of the automatic engine stop unit, the override unit providing an override signal to the automatic engine stop unit in response to detection by the non-use state detecting sensor of the movement of the utility member to the non-use position.

A frameless type working vehicle includes an intermediate vehicle body acting as a body forming member for interconnecting a front vehicle body and a rear vehicle body . The intermediate vehicle body is formed of a case block housing a hydrostatic stepless transmission (HST) . The case block includes, formed integral with one another, a small diameter portion connected to the rear vehicle body and providing case walls for a pump P and a motor M of HST , a large diameter portion connected to the front vehicle body and having an upper edge at a higher level than an upper surface of the small diameter portion , and a transitional portion A disposed between the small diameter portion and the large diameter portion . The large diameter portion defines an accommodating space S for a main clutch that receives drive from an engine E.

Working vehicle

A tractor transmission includes a change speed mechanism, a shift lever ( ) for shifting the change speed mechanism, a super-reduction mechanism ( ) for decelerating and outputting power inputted thereto, the super-reduction mechanism having a larger reduction ratio than the change speed mechanism, and an overdrive mechanism ( ) for accelerating and outputting power inputted thereto. A single switching device ( ) is provided for operating both the super-reduction mechanism and overdrive mechanism. The switching device is shiftable, when the super-reduction mechanism is in neutral, from a state of operating the super-reduction mechanism to a state of operating the overdrive mechanism.

Growing community of inventors

Sakai, Japan

Kenji Kato