Input device for agricultural vehicle information display

摘要

An agricultural vehicle is disclosed having a screen (12) provided with an array of soft buttons (13a-13f) and connected to a computer (24) programmed to display on the screen (12) menu items selectable by operation of the soft buttons (13a-13f). In the invention, an additional input device (26) is provided for selecting a menu item from those displayed on the screen (12), the input device (26) comprising a continuously rotatable knob which is also axially depressible to select an item from a displayed menu, rotation of the knob serving to change the menu item that is selected upon depression of the knob.