A crawler tractor comprises steering mechanisms (44)(45) for rotating a machine body by causing right and left crawler belts (9) to move differently. The tractor is characterized in that the steering mechanism (44) is connected to a drive system located be...

A traveling vehicle, wherein a power transmission system for traveling straight forward, a power transmission system for turning, a power transmission system for PTO, and a power transmission system for driving a pump are disposed in a transmission part in...

A hydraulic transmission (21) has an electric actuator (86) for changing its output/input rotation speed ratio. A controller (90) of the actuator memorizes a command current value to the actuator supposing that load is not applied on the hydraulic transmis...

The purpose of the invention is to enable a crawler tractor to brake and stop certainly without applying a load to an engine and a driving mechanism, and without complicated operation. An operation link links a conic linkage (53) which links a steering whe...

A power transmission device for a vehicle successively forms a clutch housing (7) incorporating an engine output portion (20) and a transmission housing (9) incorporating a differential mechanism (64) of drive axles are successively formed lengthwise from ...