Patent ID: 8807262

Claim:
Vehicle ( 10 ) comprising a bearing frame ( 12 ) of the tubular trestle type, two front steered wheels ( 14 , 16 ), two rear wheels ( 18 , 20 ) with fixed axis ( 144 ), an engine unit ( 22 ), steering means ( 24 ) through which it is possible to operate on the front wheels ( 14 , 16 ), a front suspension unit ( 26 , connecting the frame ( 12 ) to the front wheels ( 14 , 16 ), a rear suspension unit ( 28 ), connecting the frame ( 12 ) to the rear wheels ( 18 , 20 ), a transmission unit, interposed between the engine unit ( 22 ) and axle shafts of the rear wheels ( 18 , 20 ), a seat ( 44 ) for the driver of the vehicle ( 10 ), arranged at a central position with respect to the vehicle ( 10 ), and at least two seats ( 44 ′) for the passengers of the vehicle ( 10 ) adjacent to each other, arranged laterally and receded according to a predefined distance with respect to the seat ( 44 ) for the driver of the vehicle ( 10 ), characterised in that the engine unit ( 22 ) is elastically constrained with respect to the rear suspension unit ( 28 ) through at least one suspension mechanism ( 72 , 74 ; 84 , 90 , 92 ), which provides a first level for filtering the stresses generated by the operation of the engine unit ( 22 ) and so that the rear suspension unit ( 28 ) is capable of supporting the overall weight of the engine unit ( 22 ), and in that the rear suspension unit ( 28 ) is elastically constrained to the frame ( 12 ) through at least one auxiliary suspension mechanism ( 96 , 98 ) which, alongside the elasticity of the tyres of the rear wheels ( 18 , 20 ), forms a second level for filtering the stresses generated by the operation of the engine unit ( 22 ) said suspension mechanism of the engine unit ( 22 ) comprising a pair of lateral elastic support pins ( 72 , 74 ), directed according to the same axis which substantially passes through the centre of mass ( 70 ) of the engine unit ( 22 ) and arranged so as to support each about half the weight of said engine unit ( 22 ) wherein said suspension mechanism further comprises reaction rod ( 84 ) whose lower end ( 86 ) is constrained, by means of a first elastic bushing ( 90 ), to the rear suspension unit ( 28 ) of the vehicle ( 10 ), and whose upper end ( 88 ) is constrained, by means of a second elastic bushing ( 92 ), to the engine unit ( 22 ) through an adapter bracket ( 94 ), said reaction rod ( 84 ) being capable of supporting the share part of weight of the engine unit ( 22 ) not supported by the lateral elastic support pins ( 72 , 74 ) and reacting to the drive torque of said engine unit ( 22 ).