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AssigneeEtacarinae S.R.L.
InventorsPierangelo VERCELLINO, Valerio RAGANELLI
Estimating the term…
Disclosed herein is a vehicle (1)—preferably a tractor—with a trailer (2) operatively connected thereto with a cardan (3), said cardan (3) comprising a power take-off, said power take-off being switched off when said cardan (3) builds with said vehicle (1) and/or with said trailer (2) an angle (ϵ) smaller than a first threshold value (a) and/or larger than a second threshold value (β) and being switched on when said angle (ϵ) exceeds again said first threshold value (β) thanks to suitable actuators, including detection means of the angle formed between the cardan (3) and said vehicle and/or trailer. According to the present invention, said angle (ϵ) is detected by a detector consisting of a magnetic device (4) placed on the trailer (2) or the vehicle (1) and an electronic compass (5) placed on the vehicle (1) or on the trailer (2). Preferably, the angle (ϵ) insisting on the cardan (3) is obtained according to the formula: ϵ=180−Y−arcsen (l/m sen y) (3) where y is the angle the compass (5) forms with respect to the straight travel with the magnet (4), I is the distance between the cardan (3) and the compass (5), m is the distance between the cardan (3) and the magnet (4).
A simplified system for disconnecting a power take-off of a cardan in a vehicle with a trailer operatively connected thereto with a cardan by a power take-off, said system disconnecting said power take-off when said cardan forms with said vehicle and/or with said trailer an angle ϵ smaller than a first threshold value and/or greater than a second threshold value β switching it back on when said angle ϵ exceeds said first threshold value again and/or goes below said second threshold value β thanks to suitable actuators, capable of cooperating with means for detecting the angle formed between the cardan and said vehicle and/or trailer, wherein a detector constituted wherein a magnetic device is placed on the trailer or vehicle and by an electronic compass on the vehicle or on the trailer is capable of detecting measures related to said angle ϵ.
Dependencies are inferred from the claim text.