Drive unit placement and access openings for a platform lifting system

A platform lifting system for transporting a person or an object from at least a first level to a second level, wherein the platform lifting system comprises:

• a drive unit,
• a platform,
• at least two vertical columns, wherein said columns are adapted to facilitate an up and a down movement of the platform,
• a drive system positioned on or within at least one of the two columns, wherein said drive system is adapted to facilitate the up and down movement of the platform,
• a first access opening and a second access opening,
• wherein the drive system is a closed end system,
• wherein the drive unit is mounted between the two columns, said drive unit can be placed anywhere within an area defined by the two columns, and the two columns extend vertically above the drive unit,
• wherein the drive unit has a depth being equal or less than the depth of the two columns, enabling the platform to pass the drive unit when moving up or down on the two columns, and
• wherein the at least two columns are mounted on a wall or on at least one floor deck of an associated building and at least one of the first access opening and the second access opening is provided between the two columns.