To provide a travel control device for a tractor having a simple constitution requiring no special input tool for selecting and resetting a working mode or a traveling mode, as necessary, without the need for troublesome selecting operation.
The travel control device for the tractor comprises a control part 71 for controlling a traveling speed while adjusting the throttle opening of an engine C and the shift transmission ratio of a transmission 2 at a power roller angle and for selecting a working mode for working travel at a set speed while operating a connected working machine F or the traveling mode for traveling at a vehicle speed corresponding to accelerator operation M. In this case, the control part 71 uses a mode selecting switch signal 73 for selecting the working mode or the traveling mode. The control part can control the traveling speed in the traveling mode when detecting at least one of accelerator operation and the operation stop of the working machine even in the working mode.
MURAKAMI NAOHISA
FUJITA NOBUO
| JP2003072430A | 2003-03-12 | |||
| JP2000170889A | 2000-06-23 | |||
| JP2000205391A | 2000-07-25 | |||
| JP2005273734A | 2005-10-06 |
Maki Reiko
Kimio Kikutani