| 摘要 |
A motorized operator unit which is readily attachable to a conventional manually adjustable fork mechanism for adjustment of the forks by operation of a motor. The operator unit comprises support structure which supports a pair of elongate threaded rods. Each threaded rod has a pair of nuts threadedly attached thereto. A motor is operatively connected to the threaded rods for rotation thereof. Retainer members are attached to the nuts and prevent rotation thereof. The retainer members move with movement of the nuts along the threaded rods. The operator unit is adapted to be quickly attached to a carriage of a conventional manually adjustable fork mechanism, with the retainer members in engagement with the forks of the mechanism for movement of the forks. |
