| 摘要 |
A stage (100) includes a lift mechanism (140). The lift mechanism includes a threaded shaft (160) which rotates to lengthen or shorten a vertical lift portion (142), thereby raising or lowering the stage (100). A gearbox (146) connects the vertical lift portion (142) to an actuator shaft (144) extending to an edge of the stage (100). In this position it can be easily actuated with a drill (148) or other tool for running a power lift. |
