Patent ID: 8096066

Claim:
An extensible snowplough blade, comprising: a fixed blade body ( 10 ) having a substantially linear conformation in a longitudinal direction and being provided, at a posterior surface ( 11 ) thereof, and having means for support ( 12 ) thereof, a raising structure ( 20 ) for defining a hinged connection between the blade body ( 10 ) and a vehicle ( 150 ), the raising structure ( 20 ) in turn comprising a frame ( 21 ) for fixing the structure ( 20 ) to the vehicle ( 150 ), and coupling means ( 25 ) for coupling the fixed frame ( 21 ) to the means for support ( 12 ), a first extension ( 30 ), slidably mounted on the means for support ( 12 ) in a parallel position to the blade body ( 10 ) and being located in front of the blade body ( 10 ) and being variably extendable longitudinally with respect to the blade body ( 10 ) in a left-wards direction, a second extension ( 40 ), slidably mounted on the means for support ( 12 ) in a parallel position to the blade body ( 10 ) and being located in back of the blade body and being variably extendable longitudinally, with respect to the blade body ( 10 ), in a right-wards direction, and adjusting means ( 6 ) provided in the raising structure ( 20 ) in order to regulate an angle of incidence relative to the ground of the snowplough blade ( 100 ), wherein the first extension ( 30 ) is larger than the blade body and is extendable longitudinally between a closed position (A) in which the first extension completely covers the blade body and provides to the total working size of the snowplough blade ( 100 ) and an open position (B), in which the first extension uncovers the blade body ( 10 ) and cooperates therewith to increase a working size of the snowplough blade ( 100 ) towards the left.