| 摘要 |
A self or assist-operated lift apparatus is disclosed. In various embodiments, the lift apparatus includes a vertical rail; a linear bearing positioned to be moved along the vertical rail; a drive mechanism coupled to the linear bearing and configured to move the linear bearing at a controlled rate along the vertical bearing between a first position at a lower end of a range of motion and a second position at an upper end of the range of motion; and a seat attached to the linear bearing, the seat being constructed at least in part of a substantially rigid material and having a size and shape suitable to accommodate a seated human occupant. |
