Mobile work zone protection device
AssigneeState of California, Department of Transportation
InventorsCalvin W. Schiefferly, Angela E. Wheeler, Jeremy M. Matsuo
Life of this patent
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Abstract
A mobile work zone protection device includes a front carrier, a barrier beam assembly, and a rear carrier. In one embodiment, the barrier beam assembly includes two sets of telescoping beam structures. Each of these structures can rotate from one side of the device to the other, and thus can be deployed to create a safe work zone for roadway workers on either side of the device. The structure can also be left in the transit position to provide an enclosed safe work zone.
Claims20
A mobile work zone protection device for protecting roadway workers from errant traffic, the device comprising in combination:
- an elongate first barrier extending substantially horizontally from a first end to a second end;
- said first end coupled to a front carrier;
- said second end coupled to a rear carrier, said rear carrier separate from said front carrier;
- said elongate first barrier spaced laterally from a horizontal centerline passing through said first carrier and said second carrier;
- said front carrier and said rear carrier adapted to preclude relative rotation therebetween about a vertical axis;
- and
- an at least partially open work zone between said front carrier and said rear carrier and lateral to said first elongate barrier, said work zone including said centerline passing therethrough.
A mobile work zone protection device for protection of workers, such as from errant traffic along a roadway, the device comprising in combination:
- a first barrier having a first end opposite a second end;
- said first barrier having a longitudinal axis extending substantially horizontally between said first end and said second end;
- a front carrier coupled to said first end;
- said front carrier adapted to support said first end of said first barrier without rotation between said front carrier and said first barrier about a vertical axis;
- a rear carrier coupled to said second end;
- said rear carrier adapted to support said second end of said first barrier without rotation between said rear carrier and said first barrier about a vertical axis;
- said first barrier spaced laterally from a centerline extending from a center of said front carrier to a center of said rear carrier;
- and
- an at least partially open work zone between said front carrier and said rear carrier and lateral to said first barrier.
A work zone protection device for protecting roadway workers from errant traffic, the device comprising in combination:
- an elongate first barrier extending substantially horizontally from a first end to a second end;
- said first end coupled to a front carrier;
- said second end coupled to a rear carrier, said rear carrier separate from said front carrier;
- said first elongate barrier oriented spaced laterally from a horizontal centerline passing through said first carrier and said second carrier;
- an at least partially open work zone between said front carrier and said rear carrier and lateral to said first elongate barrier, said work zone including said centerline passing therethrough;
- and
- said first elongate barrier adapted to preclude lateral vehicle incursion into said work zone by forming said barrier to have a top edge high enough to substantially preclude high clearance vehicles from entering said work zone, and a bottom edge low enough to substantially preclude low to the ground subcompact or sports car vehicles from entering said work zone.
Dependencies are inferred from the claim text.