Abstract: A below-grade collapsible bollard and cable vehicle barrier system disposed in a vehicle pathway. The system comprises one or more bollard devices that include a vault located in the vehicle pathway, a rod rotatably mounted inside the vault, a bollard having a first end coupled to the rod, whereby rotation of the rod rotates the bollard to extend the second end thereof above the vehicle pathway. An actuator is secured within the vault for rotating the rod and thus raising the bollard. A cable is disposed perpendicular to the vehicle pathway with each end thereof affixed to anchors on either side of the pathway. The middle of the cable is affixed to the second end of the bollard. When the bollard is raised the cable is stretched across the pathway forming a barrier to traffic.

Abstract: A collapsible traffic barrier system is disclosed which includes a steel vault having a top treated with anti-skid material. A rod is rotatably mounted to support members inside the vault, wherein the rod extends across the vault from end to end. A plurality of bollards are coupled to the rod substantially near the first end thereof, whereby rotation of the rod rotates the bollards so as to extend the second ends of the bollards above the vault in a vertical direction, or raised position. An actuator having a first end anchored within the vault and a second end is coupled to the rod by means of an arm. The actuator is a worm-drive mechanism disposed for rotating the rod. A stop is anchored to the bottom of the vault for engaging the first ends of the bollards when the bollards are in the raised position.

Abstract: A collapsible traffic barrier system is disclosed which includes a steel vault having a top, a bottom, two ends, an approach side and a shoulder side. The top may be treated with anti-skid material. A rod is rotatably mounted to support members inside the vault, wherein the rod extends across the vault from end to end. A plurality of bollards are coupled to the rod substantially near the first end thereof, whereby rotation of the rod rotates the bollards so as to extend the second ends of the bollards above the vault in a vertical direction, or raised position. An actuator having a first end anchored within the vault and a second end is coupled to the rod by means of an arm. The actuator is a worm-drive mechanism disposed for rotating the rod. A stop is anchored to the bottom of the vault for engaging the first ends of the bollards when the bollards are in the raised position.