| 摘要 |
The present invention relates to a stair lift drive, comprising a rail extending along a track, which is at least on one side of its width provided with a recess that extends in a direction tangential to the rail a frame part, provided with at least one set of wheels, of which at least one wheel engages on the rail in the at least recess, wherein the wheels are each rotatable about an axis which extends substantially perpendicular to the width of the rail as well as perpendicular to the axial direction of the rail; a propulsion, to drive at least one of the wheels, wherein the running surfaces of the wheels engage at least a part of the recess in a form-fitting manner, and wherein the cross section of the rail has a substantially smooth shape. |
