| 摘要 |
A double sliding gate arrangement, actuator mechanism and drive method are disclosed. A drive gate (21) is connected to a slave gate (22) by an actuator link (33). A carriage (34) reciprocal along a rail (31) carries the actuator link (33) and is driven by a loop of cable (50). Opposite ends (51, 52) of the cable are connected to a moveable support (39, 40) driven by a motor (25). The slave gate (22) moves at twice the speed of the driven gate (21). The width of the effective vehicular access (Z) is a much greater percentage of the width of the carriageway (Y) than in the prior art. |
