Door suspension system

摘要

The door suspension system comprises a rail support ( 1 ) attachable to a crosspiece ( 2 ) of a door and having a part shaped as a rigid substantially flat plate ( 3 ) which supports a rail ( 4 ). A pair of brackets ( 8 ) comprising each a connector ( 9 ) are attached to supporting means ( 10 ) which have an opening ( 11 ), in which the rail ( 4 ) is partially introduced. Said connectors ( 9 ) have a substantially C-profile embracing the flat plate ( 3 ) and the rail ( 4 ). A support piece ( 12 ) is attached to the connectors ( 9 ) and provided with connection means ( 13 ) for the suspension of a door ( 14 ) of a lift. A magnetic way ( 16 ) is attached to the plate ( 3 ) and an elongated primary ( 15 ) of a linear motor is attached to the strip ( 12 ) in such a manner that the attraction force between the magnetic way ( 16 ) and the primary ( 15 ) cancels at least partially the weight of the door ( 14 ). The door suspension system further comprises a bearing of substantially cylindrical shape with an axial recess. Said bearing is mounted in said opening ( 11 ) of the supporting means ( 10 ) and said rail ( 4 ) is introduced in said recess.