Kubota Corporation

Hiroki Fukudome

Yoshitaka Higashikawa

Shuichi Takeshita

Kenzo Ushiro

Masataka Takagi

Eiji Miyazaki

Tadashi Nakamura

Ryoichi Nishi

Akifumi Nishino

Kiyokazu Nakanishi

Naoya Tsuda

Ryuji Kitagawa

Kiyoshige Maezawa

Nobuyuki Yoshii

Naoki Onishi

Koichi Kawaguchi

Koji Saito

Tadashi Nakao

A work vehicle includes a front loader mounted at a front portion of the work vehicle to be vertically pivotable, a driving control device, and a canopy device for covering the driving control device from above, the canopy device including a roof disposed upwardly of the driving control device and a support body for supporting the roof. The roof includes a front visor portion which projects, in a plan view thereof, to a position same as or more forwardly of a front end portion of the driving control device. To a lower face of said front visor portion, there are attached a pair of right and left front illumination lamps, and there is provided an upper concave portion at the right/left center thereof. A lower face of the upper concave portion is formed as an inclined face which is inclined upward from a rear portion to a front edge of the front visor portion so as to be located at a higher position than the attaching position of the front illumination lamps.

Work vehicle

A work apparatus to be mounted to a work vehicle includes: a pair of cylindrical mastsdisposed erect on right and left sides of a vehicle body having a control valve; a boompivotally supported to the masts; an implement pivotally supported to the boom; a boom cylinderfor pivoting the boom; an implement cylinderfor operating the implement; a boom piping system communicating the control valve with the boom cylinder; and an implement piping system communicating the control valve with the implement cylinder; wherein a channel constituting memberconstituting the boom piping system extends vertically within each mast; one end of the channel constituting memberextends to the outside at a lower portion of the mast to be connected with the control valve; and the other end of the channel constituting memberextends to the outside at an upper portion of the mastto be connected with boom cylinder

Loader work apparatus

A vibration-isolating device for a steering wheel of a travelling working vehicle equipped with a wheel steering mechanism includes a first steering shaft () that transmits rotational displacement, the first steering shaft being operatively connected to the steering wheel (); a second steering shaft () that transmits rotational displacement, the second steering shaft being operatively connected to the wheel steering mechanism (P,); and a vibration-isolating connecting mechanism () that operatively connects the first steering shaft () and the second steering shaft () to each other so that rotational displacement can be transmitted. When the angles of rotational displacement of the first steering shaft () and the second steering shaft () are within ranges of rotation angles for linearly driving the vehicle, rotational displacement cannot be transmitted between the first steering shaft () and the second steering shaft ().

Vibration-isolating device for steering wheel of traveling working vehicle with wheel steering mechanism

A work vehicle with a working implement, comprising: a control leverfor controlling the working implementthe control lever being rockably disposed laterally of a driver's seatmounted on a vehicle bodya control valvedisposed laterally of the vehicle body for controlling actuatorsthat drive the working implement; and interlocking linksfor interlocking the control lever and spoolsof the control valveand transmitting rocking of the control lever to the spools; wherein the control leverand the spoolsare staggered transversely and longitudinally of the vehicle bodyand the interlocking linksare bent, one end of each interlocking link being connected to a first link connectorconnected to the control lever, the other end of each interlocking link being connected to a second link connector connected to one of the spools.

Work vehicle with staggered control level

A boom assembly is bent at a longitudinal center portion thereof to present an upwardly convex shape. The assembly includes a front boom body and a rear boom body. The front boom body and the rear main body each includes a main body consisting essentially of a pair of right and left lateral plates and a top plate interconnecting upper edges of the respective lateral plates. The main body is formed with an upper face and a lower edge thereof being bent in a longitudinal direction thereof into an arc face having a predetermined radius of curvature. The front or rear main body further includes a bottom plate disposed downwardly of the top plate and between the right and left lateral plates. Each main body is formed by bending a plate member into a reverse U-shaped cross section and each bottom plate is comprised of a plate member provided separately from the plate member forming the main body.

Boom assembly

A work vehicle includes a pair of, right and left booms detachably attached to a vehicle body, an implement attached to leading ends of the booms and a stand for supporting the booms with the implement being placed on a ground surface when the booms are detached from the vehicle body. The stand includes a pair of, right and left stand members provided in correspondence with the right and left booms and a stand connecting member for interconnecting the stand members. Each stand member is attached to the boom corresponding thereto in such a manner that the stand is movable between a use position in which each stand member projects downwardly from the boom for supporting the boom and a non-use position in which each stand member extends along the boom.

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

Boom assembly for a loader bucket

An operator presence sensing apparatus for a seat of a vehicle includes a base member () for supporting the seat (), and a relay member () extending vertically between the base member and the seat. The seat is oscillatable about a pivot axis (X) extending in a transverse direction in the base member. The relay member is pivotably supported at one end thereof by the pivot axis and at the other end by the base member through a cushion spring (). A seat lift-up spring () is disposed between an underside of the seat and the base member for receiving part of the weight of the seat. The seat unoccupied by the operator is oscillated to a floating position lifted from the relay member by the lift-up spring. The apparatus further comprises an operator presence sensing switch () for detecting the seat occupied by the operator and oscillated from the floating position to a lower seated position, and a restricting device () for restricting the relay member oscillating upward by action of the cushion spring when the seat is not occupied by the operator.

Growing community of inventors

Sakai, Japan

Hiroki Fukudome