| 摘要 |
The hand control mechanism has the ability to receive two alternative modes of input for the given mode of output. The mechanism includes a handled lever extending into a housing rotatably mounted to a frame, and a bell crank rotatably mounted to said housing. The handled lever can be moved longitudinally to a first or second position. The first position communicates the lever to a plurality of gears such that rotating the lever about its longitudinal axis rotates the bell crank about the housing. Placing the lever in the second position the bell crank is restrained from rotating free of the housing which can be rotated directly by the lever, rotation of the bell crank being the assigned mode of output. |
