Patent ID: 7628251

Claim:
An elevator installation with an elevator car and a linear drive system with a stationary part, a longitudinal axis of which is arranged in vertically along a shaft wall of the elevator installation, and with a movable part which moves along the stationary part when the linear drive system is controlled in a drive mode, comprising: the elevator car being arranged in a rucksack configuration and movable by the linear drive system along the stationary part; the stationary part having at least two inclined interaction surfaces which extend parallel to the longitudinal axis and which lie in a plane, said plane including an angle between 0° and 180° and surface normals of said interaction surfaces being oriented towards the elevator car; and the movable part including at least two units which are so arranged in common on a rear side of the elevator car and mechanically positively connected with the elevator car that during the drive mode each of said two units produces a movement along one of said interaction surfaces to thereby move the elevator car.