| 摘要 |
The rotating mechanism of the present invention includes: a rotatable shaft; a first crank arm, wherein one end of the first crank arm is fixedly connected to the shaft; a second crank arm, wherein one end of the second crank arm is rotatably connected to the shaft; a first hydraulic or pneumatic cylinder interconnecting the two crank arms, and spaced apart from the shaft, whereby contraction or expansion of the first hydraulic or pneumatic cylinder enables the angular distance between the crank arms to be varied; and a second hydraulic or pneumatic cylinder connecting the second crank arm to a support; wherein the second crank arm is the closer of the two crank arms to the support. ccZ Cco Lu U- |
