Abstract: A front loader frame includes a first attachment having a first attachment surface that can be oriented on a first virtual plane and is fixable to one portion a vehicle body. A second attachment has a second attachment surface that can be oriented on a different virtual plane from the first virtual plane and is fixable to another portion of the vehicle body.

Abstract: A work vehicle includes an engine mounted to a vehicle body frame. A cooling fan unit is arranged on one side of the engine. A coolant fluid radiator is arranged on an opposite side of the cooling fan unit. A cooling unit is arranged on an opposite side of the coolant fluid radiator. A link mechanism connects the cooling unit such that a distance between the cooling unit and the coolant fluid radiator can be changed. The link mechanism can utilize a four-link mechanism having a pair of upper links and a pair of lower links.

Abstract: A multifunction operation tool includes a swing body swingably supported in a front/back direction of a vehicle body and implementing acceleration control on a transmission by swinging in a forward direction and implementing deceleration control on the transmission by swinging in a rearward direction. A grip body arranged on a free end portion of the swing body. A grip part arranged on a first lateral area of the grip body in a transverse direction of the vehicle body and having a convex surface. A vertical lateral surface arranged on a second lateral area of the grip body and which is a lateral surface of the grip part. An operator-facing surface arranged on the second lateral area of the grip body and extending in the transverse direction of the vehicle body from a bottom edge of the vertical lateral surface. Operation switch groups are arranged on the vertical lateral surface and the operator-facing surface.

Abstract: A work vehicle includes an engine mounted to a vehicle body frame. A cooling fan unit is arranged on one side of the engine. A coolant fluid radiator is arranged on an opposite side of the cooling fan unit. A cooling unit is arranged on an opposite side of the coolant fluid radiator. A link mechanism connects the cooling unit such that a distance between the cooling unit and the coolant fluid radiator can be changed. The link mechanism can utilize a four-link mechanism having a pair of upper links and a pair of lower links.

Abstract: A front loader frame includes a first attachment having a first attachment surface that can be oriented on a first virtual plane and is fixable to one portion a vehicle body. A second attachment has a second attachment surface that can be oriented on a different virtual plane from the first virtual plane and is fixable to another portion of the vehicle body.

Abstract: A multifunction operation tool includes a swing body swingably supported in a front/back direction of a vehicle body and implementing acceleration control on a transmission by swinging in a forward direction and implementing deceleration control on the transmission by swinging in a rearward direction. A grip body arranged on a free end portion of the swing body. A grip part arranged on a first lateral area of the grip body in a transverse direction of the vehicle body and having a convex surface. A vertical lateral surface arranged on a second lateral area of the grip body and which is a lateral surface of the grip part. An operator-facing surface arranged on the second lateral area of the grip body and extending in the transverse direction of the vehicle body from a bottom edge of the vertical lateral surface. Operation switch groups are arranged on the vertical lateral surface and the operator-facing surface.

Abstract: A track frame is swingably supported by a rear axle case of a travel machine body through a rocking shaft; front and rear driven wheels are disposed in front and rear end portions of the track frame; at least three idling wheels are disposed on an intermediate portion of the track frame at intervals in a longitudinal direction; a drive wheel which is disposed upward of a longitudinal intermediate portion of the track frame and is configured to receive a power transmitted from a rear axle supported by the rear axle case; and a crawler belt is wrapped around the drive wheel, the front driven wheel, the rear driven wheel and the idling wheels. Two idling wheels on a rear side of the at least three idling wheels are pivoted on a first rocking link, and a longitudinal intermediate portion of the first rocking link is pivoted on the track frame through a first pivot shaft.

Abstract: A crawler traveling apparatus includes a traveling vehicle body having a rear axle case, a track frame supported via a pivot shaft to the rear axle case, a pair of front and rear driven wheels mounted at front and rear end portions of the track frame, a pair of the rear driven wheels being provided on the right and left sides across a rear end portion of the track frame, a free wheel mounted at an intermediate portion of the track frame, a crawler entrained about a drive wheel, the front and rear driven wheels and the free wheel, a rearwardly downward inclined face formed at an upper portion of the rear end portion of the track frame, the inclined face being configured to cause an amount of earth/sand to drop off its surface; and a rear upper cover provided at an upper portion of the rear portion of the track frame in the vicinity of said inclined face, the rear upper cover forming a rear upper inclined face that is oriented downward in the right/left outward direction, the rear upper inclined face being conf

Abstract: A track frame is swingably supported by a rear axle case of a travel machine body through a rocking shaft; front and rear driven wheels are disposed in front and rear end portions of the track frame; at least three idling wheels are disposed on an intermediate portion of the track frame at intervals in a longitudinal direction; a drive wheel which is disposed upward of a longitudinal intermediate portion of the track frame and is configured to receive a power transmitted from a rear axle supported by the rear axle case; and a crawler belt is wrapped around the drive wheel, the front driven wheel, the rear driven wheel and the idling wheels. Two idling wheels on a rear side of the at least three idling wheels are pivoted on a first rocking link, and a longitudinal intermediate portion of the first rocking link is pivoted on the track frame through a first pivot shaft.

Abstract: A crawler traveling apparatus includes a traveling vehicle body having a rear axle case, a track frame supported via a pivot shaft to the rear axle case, a pair of front and rear driven wheels mounted at front and rear end portions of the track frame, a pair of the rear driven wheels being provided on the right and left sides across a rear end portion of the track frame, a free wheel mounted at an intermediate portion of the track frame, a crawler entrained about a drive wheel, the front and rear driven wheels and the free wheel, a rearwardly downward inclined face formed at an upper portion of the rear end portion of the track frame, the inclined face being configured to cause an amount of earth/sand to drop off its surface; and a rear upper cover provided at an upper portion of the rear portion of the track frame in the vicinity of said inclined face, the rear upper cover forming a rear upper inclined face that is oriented downward in the right/left outward direction, the rear upper inclined face being conf

Abstract: A semicrawler-type working vehicle is provided having a vehicle body (3), a front steering control wheel (7) arranged at a front side of the vehicle body, a drive shaft (26) and a pivot shaft (22) arranged at a rear side of the vehicle body, and a semicrawler unit (2) driven by the drive shaft. The semicrawler-type working vehicle comprises: a track frame (16) by which the semicrawler unit (2) is supported via the pivot shaft (22) so as to be pivotable relative to the vehicle body (3); a drive wheel (11) arranged on the drive shaft (26); a front driven wheel (12) and a rear driven wheel (13) that are supported by the track frame (16) such that a horizontal distance from the drive wheel (11) to the front driven wheel (12) is longer than a horizontal distance from the drive wheel (11) to the rear driven wheel (13); and a crawler belt (15) that is wound around the drive wheel (11), the front driven wheel (12), and the rear driven wheel (13).

Abstract: A crawler traveling apparatus includes a rubber crawler belt having a plurality of driving projections formed with a predetermined peripheral pitch on an inner peripheral face of the belt, a drive wheel rotatable when engaged with the driving projections of the crawler belt for driving the belt, and a plurality of free wheels rotatable for laterally guiding the driving projections under movement. Each driving projection has an upper half having a lateral face including an upper half lateral face portion and a lower half having a lower half lateral face portion, the upper half lateral face portion having an erect inclination angle smaller than an erect inclination angle of the lower half lateral face portion. Each free wheel has an inner lateral face opposed to the driving projection, the inner lateral face having an inclined guide face having an inclination parallel to the lower half lateral face portion of the driving projection.

Abstract: A semicrawler-type working vehicle is provided having a vehicle body (3), a front steering control wheel (7) arranged at a front side of the vehicle body, a drive shaft (26) and a pivot shaft (22) arranged at a rear side of the vehicle body, and a semicrawler unit (2) driven by the drive shaft. The semicrawler-type working vehicle comprises: a track frame (16) by which the semicrawler unit (2) is supported via the pivot shaft (22) so as to be pivotable relative to the vehicle body (3); a drive wheel (11) arranged on the drive shaft (26); a front driven wheel (12) and a rear driven wheel (13) that are supported by the track frame (16) such that a horizontal distance from the drive wheel (11) to the front driven wheel (12) is longer than a horizontal distance from the drive wheel (11) to the rear driven wheel (13); and a crawler belt (15) that is wound around the drive wheel (11), the front driven wheel (12), and the rear driven wheel (13).

Abstract: A crawler traveling apparatus includes a rubber crawler belt having a plurality of driving projections formed with a predetermined peripheral pitch on an inner peripheral face of the belt, a drive wheel rotatable when engaged with the driving projections of the crawler belt for driving the belt, and a plurality of free wheels rotatable for laterally guiding the driving projections under movement. Each driving projection has an upper half having a lateral face including an upper half lateral face portion and a lower half having a lower half lateral face portion, the upper half lateral face portion having an erect inclination angle smaller than an erect inclination angle of the lower half lateral face portion. Each free wheel has an inner lateral face opposed to the driving projection, the inner lateral face having an inclined guide face having an inclination parallel to the lower half lateral face portion of the driving projection.