Vehicle speed operating device for work vehicle

A vehicle speed operating device for a work vehicle having a body frame, a travel device and a brake for braking the travel device, comprising:

• a continuously variable transmission having an operating shaft;
• a shift pedal disposed on a first lateral surface side that is one of left and right lateral surfaces of the body frame;
• a first mechanical linkage mechanism linking the shift pedal on the first lateral surface side to the operating shaft;
• a brake pedal disposed on a second lateral surface side that is the other of the left and right lateral surfaces of the body frame, and linked to the brake;
• a linkage shaft rotatably provided on the body frame and passing laterally through the body frame;
• a first projecting end portion, of the linkage shaft, projecting from the first lateral surface and having attached thereto one or both of the shift pedal and the first mechanical linkage mechanism;
• a second projecting end portion, of the linkage shaft, projecting from the second lateral surface;
• a speed maintenance mechanism linked to the second projecting end portion with a configuration capable of holding the operating shaft at a given shift position via the linkage shaft, and disposed on the second lateral surface side;
• and
• a second mechanical linkage mechanism disposed on the second lateral surface side, and linking the brake pedal to the speed maintenance mechanism, such that the speed maintenance mechanism is switched from a state of holding the operating shaft at a given shift position to a state of releasing the holding, in tandem with the brake pedal being pressed down.