Patent ID: 11965296
Assignee: nan
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
1. A traffic control device for use with a roadway receiving vehicles travelling longitudinally along the roadway in a travel direction, the device comprising:
a housing which is elongate in a longitudinal direction and which is adapted to be mounted to extend across the roadway transversely to the travel direction;
the housing having an upper supporting surface adapted to support the vehicles rolling over the housing;
the upper supporting surface having a plurality of upper openings formed therein;
a plurality of tire puncturing members having respective pointed ends adapted to puncture tires of the vehicles;
the tire puncturing members being pivotal relative to the housing about a common pivot axis between a stored position in which the tire puncturing members are retracted below the upper supporting surface of the housing and a working position in which the pointed ends of the tire puncturing members protrude upwardly beyond the upper supporting surface of the housing through the upper openings formed therein;
wherein the tire puncturing members are joined in fixed relation to one another to define a tire puncturing frame which is collectively pivoted between the working position and the stored position;
a biasing arrangement biasing the tire puncturing frame towards the working position;
the housing further comprising a threaded aperture formed therein;
a latch bolt threadably received within the threaded aperture in the housing such that the latch bolt is movable between a first position in which the latch bolt engages the tire puncturing frame in the stored position to retain the tire puncturing frame in the stored position and a second position in which movement of the tire puncturing frame into the working position is unobstructed by the latch bolt.