Device and attendant equipment for converting a motor-scooter into a vehicle suitable for operating on snowy ground

A device and attendant equipment for converting a motor scooter having a rear wheel and a front wheel into a vehicle suitable for operating in any direction and without altered center of gravity substantially comprising a rear crawler-mounting trolley with its drive reversing/reducing gearing mounted in lieu of the rear wheel and a steering skid mounted in lieu of the front wheel, said trolley comprising a cradle-like frame connectible to the normal fixing means of the existing engine and shock absorber of the scooter, said frame including two transverse spacer bars supporting a front fork and a rear fork, for mounting two idle wheels capable of movably guiding said crawler track while permitting limited lateral tiltability thereof and for swingably supporting a longitudinal bar mounting a plurality of pairs of smaller supporting wheels, said crawler track having a flat belt of rubberized fabric or the like and having affixed thereto a plurality of equally-spaced cross members or shoes made of metal angle bars, and provided with a central row of rectangular openings formed with a suitable pitch therebetween in the spaces between consecutive shoes to permit meshing engagement, on the outer side of said track, of a driving toothed wheel mounted on a suitable drum hub containing a crown-and-pinion reversing/reducing gearing to be mounted in lieu of the drum hub carrying the rear wheel of the vehicle.