| 摘要 |
<p>In an apparatus fitted with a power take-off (PTO) drive (7) connectable to ancillary equipment and means (9,11) for actuating and deactuating the PTO drive (7), an interlock system comprising sensor means (60;79) for sensing whether the PTO drive (7) is operative and producing an output signal representative thereof, timer means (75) coupled to the actuating and deactuating means (9,11) and initiated when said means (9,11) is operated, and means (76) responsive to the sensor output signal and coupled to the timer means (75) and operable to produce a deactuating signal the sensor output signal is of a predetermined nature when the timer (75) times out, the deactuating signal being applied to a selected component (11;71) of the apparatus to deactuate that component. <IMAGE></p> |
