Kubota Corporation

Kiyokazu Nakanishi

Akifumi Nishino

Tsukasa Wada

Mitsuhiro Takekata

Kenzo Ushiro

Hiroki Fukudome

Ryuji Kitagawa

Kiyoshige Maezawa

Koichi Kawaguchi

Shinichi Morita

Toshiyuki Hamamoto

A speed change operation apparatus includes a pivotal body operatively connected to a trunnion shaft to be pivotally displaced in response to an operational displacement by an operational tool, a positioning body operatively coupled with the pivotal body so as to be pivotally displaced in response to a pivotal displacement of the pivotal body, a main urging mechanism for applying an urging force to the pivotal body via the positioning body for returning the pivotal body from an operational position to the neutral position, and an auxiliary urging mechanism for applying an auxiliary urging force to the pivotal body for returning the pivotal body from the operational position to the neutral position.

Speed change operation apparatus for stepless speed changer device

A tractor with a PTO apparatus, comprises: a plurality of wheels; a vehicle body supported by the plurality of wheels; an engine supported on the vehicle body; a rear PTO shaft disposed at a rear of the vehicle body for transmitting power from the engine; a mid-PTO shaft disposed under the vehicle body for transmitting power from the engine; a PTO mode selecting device having a first position for transmitting power only to the rear PTO shaft, a second position for transmitting power to both the rear PTO shaft and said mid-PTO shaft, and a third position for transmitting power only to said mid-PTO shaft; a PTO clutch disposed on a transmission line upstream of said PTO mode selecting device and switchable between an engaged position and a disengaged position; and a restricting mechanism for preventing a change operation of said PTO mode selecting device when said PTO clutch is in the engaged position, and permitting the change operation of said PTO mode selecting device when said PTO clutch is in the disengaged position.

Tractor with a PTO apparatus

An attachment construction for attaching a front loader having booms to a front of a tractor vehicle body is disclosed. The construction includes a pair of support tables projecting from the front portion of the tractor body to the right and left outer sides thereof, an engine constituting the vehicle body being disposed forwardly of the support tables, a front axle frame being secured to right and left sides of the engine, a pair of main frames disposed erect on the respective support tables for supporting the booms, and a pair of attaching brackets secured to right/left inner ends of the respective support tables for attaching the support tables to the vehicle body. Each attaching bracket includes a front attaching portion secured to the front axle frame and a rear attaching portion projecting rearwardly of the support table associated therewith and secured to a fore-and-aft intermediate portion of the vehicle body.

Front loader attachment construction and work vehicle having the attachment construction

A manual control mechanism for a lift unit having a lift arm and a hydraulic cylinder for lifting the lift arm up and down. The mechanism includes a control valve configured as a three-position switchover valve for selectively providing lowering, neutral and elevating conditions according to a spool position for controlling movement of the hydraulic cylinder, a lift lever for manually operating the control valve and an operational path for guiding operational displacement of the lift lever. The operational path includes an inching operational path for operating the hydraulic cylinder at a creeping speed by slightly opening a port of the control valve and a main operational path for operating the control valve over an entire stroke range thereof. An operational feel when the lift lever is operationally displaced along the inching operational path is different from an operational feel when the lift lever is operationally displaced along the main operational path.

Manual control mechanism for lift unit

A shift control system includes a shift pedal ( ), a first linkage mechanism ( ) for transmitting a downward displacement of the shift pedal to the stepless transmission to change a shift position of the stepless transmission, a retaining mechanism ( ) for producing a retaining position corresponding to the shift position to retain the shift position of the stepless transmission, and a shift lever ( ) for setting the retaining position retained by the retaining mechanism. A second linkage mechanism ( ) is provided for transmitting of an operating displacement of the shift lever to the shift pedal to displace the shift pedal to a depressed position corresponding to the retaining position set by the shift lever and retained by the retaining mechanism. The shift lever, retaining mechanism and second linkage mechanism are attachable and detachable independently of the first linkage mechanism.

Shift control system for a working vehicle having a propelling stepless transmission

A tractor having an engine disposed in a front position, a transmission case disposed in a rear position, and a main frame for interconnecting the engine and transmission case. Reinforcing frames are attached to opposite side surfaces of the main frame. The reinforcing frames are shaped to accommodate a mid-mount mower.

Growing community of inventors

Kawachinagano, Japan

Kiyokazu Nakanishi