Patent ID: 8544889

Claim:
A motorized fastening device for seat belts of a transportation vehicle, of the kind comprising a belt ( 11 ) unwrapping from a coiler ( 12 ), which is fixedly arranged on a side of a seat ( 16 ), and passing in sequence through a regulator ( 13 ), which is fixedly arranged on the same side of said seat ( 16 ) where also said coiler ( 12 ) is arranged, a tongue ( 14 ), a housing ( 15 ) of said tongue ( 14 ) and a blocking point ( 18 ) of the extremity of the belt ( 11 ), which is fixedly arranged in proximity of said coiler ( 12 ), wherein said device further comprises a track ( 19 ) for the sliding of a transport carriage for said tongue ( 14 ), obtained on the chassis of said vehicle, defining a path going from a first position ( 31 ), corresponding to a position of non-use of the seat belts, positioned on the chassis of the vehicle, on the same side of the seat ( 16 ) with respect to said coiler ( 12 ) and said regulator ( 13 ), behind or at the base of the back of the seat and that, passing under the door ( 17 ) and within or under the dashboard of the vehicle, arrives to a second position ( 32 ), corresponding to a working position of the seat belts, behind or at the base of the back of the seat ( 16 ), on the opposite side of the seat ( 16 ) with respect to the position of said coiler ( 12 ) and of said regulator ( 13 ).