| 摘要 |
The present invention relates to a stair lift drive, comprising a rail extending along a track, a first frame part, provided with at least one pair of wheels engaging the rail, a second frame part, provided with at least one pair of wheels engaging the rail, a propulsion, to drive at least one of the wheels, a mounting part for a seat of a user of the stair lift, connected to the first frame part; wherein the first frame part is freely rotatably connected to the second frame part about two axes, which are perpendicular to each other and perpendicular to the tangential direction of the track; and about an axis parallel to the tangential direction of the track. |
