| 摘要 |
A conveyor includes a support base, a linear driving mechanism mounted on the support base, a carrier, and a linkage bar mechanism pivotally connecting the carrier and the linear driving mechanism. The linear driving mechanism includes two substantially parallel threaded rods, two threaded members respectively engaging the two threaded rods, two actuators respectively rotating the two threaded rods, and two slide members slidable relative to the support base and respectively secured to the two threaded members. The linkage bar mechanism includes a first, second, and third bars pivotally connected to the slide member and the carrier, respectively. The first bar, the third bar, the slide member carrying the first bar, and the carrier cooperatively form a parallel four-bar mechanism. The first bar, the second bar, the slide member carrying the second bar, and the carrier cooperatively form a trapezoidal four-bar mechanism. |
