Patent ID: 7854182

Claim:
A work vehicle comprising: a hydrostatic continuously variable speed-change device including: an input shaft to which engine output is transmitted; a hydraulic pump for receiving drive power from the input shaft; a hydraulic motor for receiving pressure oil from the hydraulic pump through a first speed-change oil passage and for returning discharged oil to the hydraulic motor through a second speed-change oil passage; an output shaft to which driver power is transmitted from the hydraulic motor; a bypass oil passage communicating the first and second oil passages with each other; and a valve mechanism for opening and closing the bypass oil passage; a gear multiple-stage speed-change device to which drive power is inputted from the output shaft; a manual operating member provided in a driving section for opening and closing the valve mechanism; and a brake operating member included in a drivetrain for operating a brake; wherein said brake operating member is operatively connected to said valve mechanism such that said valve mechanism is opened in response to an operation of the brake operating member thereby stopping output of drive power from the output shaft.