| 摘要 |
A barrier apparatus and method are provided to reciprocate a gate or barrier between an open or closed position with one or more linear drives having one or more traveler mechanisms where at least one motor rotates the one or more shafts and moves the traveler mechanisms to move the barrier. The moving traveler mechanisms are coupled to one or more connecting arms which are coupled to the gate and the movement traveler mechanisms push and pull the arms which in turn push and pull the barrier to reciprocate the barrier between and open and closed position. The gate may be rotated and reciprocated around a horizontal axis from a generally vertical position (i.e., generally perpendicular to the ground where access to a controlled area is open) to a generally horizontal position (i.e., generally parallel to the ground where the gate extends across the entryway to the controlled area). |
