| 摘要 |
A control system (10a)is disclosed that includes a pair of pivotable or rotatable structures (151', 152') and a telescoping structure (153') that are coupled to a single handgrip (20) and contained within a single structure. The control structures simulate corresponding structures of an aerial platform on which they may be mounted, and provide motions in the same directions of the corresponding structures. Switches are activated upon urging of a handgrip, and springs are provided to return the control to its neutral position. An aerial platform and a crane that employ the control device and include corresponding structure are also disclosed.
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