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A vehicle obstruction assembly
A vehicle obstruction assembly 10 includes a trigger device 12, a control mechanism 14 for determining when a vehicle is travelling above a predetermined speed, an obstruction element 16 that is positioned after the trigger device. The obstruction element is moveable between a first retracted position and a second deployed position. The obstruction element is connected to the trigger device via a mechanical linkage arrangement 50. The control mechanism is configured such that when an approaching vehicle is travelling above a predetermined speed upon contact with the trigger device, the trigger device moves the obstruction element from the retracted position to the deployed position via the control mechanism and the mechanical linkage arrangement. The control mechanism may be a piston damper arrangement 40 with first and second fluid filled chambers (70 72 figure 6). The obstruction element may comprise a curved surface 62 that is uppermost when the obstruction element is in the deployed position. The trigger device may be a trigger plate 22. The obstruction element may be a speed bump and may comprise a spike strip
A vehicle obstruction assembly
A vehicle obstruction assembly 10 includes a trigger device 12, a control mechanism 14 for determining when a vehicle is travelling above a predetermined speed, an obstruction element 16 that is positioned after the trigger device. The obstruction element is moveable between a first retracted position and a second deployed position. The obstruction element is connected to the trigger device via a mechanical linkage arrangement 50. The control mechanism is configured such that when an approaching vehicle is travelling above a predetermined speed upon contact with the trigger device, the trigger device moves the obstruction element from the retracted position to the deployed position via the control mechanism and the mechanical linkage arrangement. The control mechanism may be a piston damper arrangement 40 with first and second fluid filled chambers (70 72 figure 6). The obstruction element may comprise a curved surface 62 that is uppermost when the obstruction element is in the deployed position. The trigger device may be a trigger plate 22. The obstruction element may be a speed bump and may comprise a spike strip
A vehicle obstruction assembly
CHRISTOPHER MELLORS (author)
2018-01-17
Patent
Electronic Resource
English
IPC:
E01F
ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
,
Zusätzliche Baumaßnahmen, wie die Ausstattung von Straßen oder die bauliche Ausbildung von Bahnsteigen, Landeplätzen für Hubschrauber, Wegweisern, Schneezäunen oder dgl.
Obstruction detecting system for motor vehicle exhaust systems
| European Patent Office | 2017