| 摘要 |
An adjustable link assembly includes an elongate frame member having a first connection structure at an upper end thereof, a threaded drive shaft, a motor operably connected to the threaded drive shaft to enable rotation of the threaded drive shaft, a slide block operatively engaged in a sliding relationship with the frame member and operatively engaged in a driving relationship with the threaded drive shaft, and a lower frame member having a base portion and two leg portions extending from the base portion pivotally connected to the slide block and having a second connection structure at a lower end thereof. The threaded drive shaft is rotatably connected to the frame member at first and second ends of the threaded drive shaft. Rotation of the threaded drive shaft drives sliding movement of the slide block with respect to the frame member.
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