Patent ID: 9410329
Filing Date: 2016-08-09
CPC Classification: B66B,E04G

Claim Text:
1. A lift unit for ascending and descending in a shaft formed by a scaffold column, the scaffold column comprising at least one scaffold section, the at least one scaffold section being defined as comprising two sets of four ledgers which form equal rectangles which lie substantially in horizontal planes and which are connected to each other by means of uprights at their corresponding corners, the lift unit comprising a first part comprising a first set of means for removably coupling the first part to different heights of the scaffold column; a second part comprising a second set of means for removably coupling the second part to different heights of the scaffold column; and means for varying a distance between the first part and the second part, wherein when only the first part is coupled at a height to the scaffold column, the means for varying the distance between the first part and the second part are configured to push the second part upward or lower the second part downward relative to the first part coupled to the scaffold column, and wherein when only the second part is coupled at a height to the scaffold column, the means for varying the distance between the first part and the second part are configured to pull the first part upward or lower the first part downward relative to the second part coupled to the scaffold column.