摘要 |
<p>A control device 1 comprises an operator lever 2 fast at its lower end with a lever block 3 which carries a ball stud 4 of which the ball 7 is mounted for universal pivoting in a fixed ball housing 8. A cross shaft 13 is mounted for rotation about its axis in the lever block 3, and links 17 are pivotally connected to opposite ends of the cross shaft and each to an axially movable output member 20. The operator lever 2 can be pivoted about axes passing through the centre of the universally pivoted ball 7 to cause axial movements of the output members, either together in the same direction or in opposite directions or one only at a time. A gate may be provided for the operator lever 2 to confine the ball 7 to pivot only about defined axes. A spring 24 may be provided which becomes loaded upon movement of each output member 20 either side of a neutral position to bias the output member and hence the operator lever 2 back to neutral. The output members 20 may operate push pull control cables.</p> |