Elevator system

An elevator system having an elevator car that travels vertically along a vertical track that includes a stationary vertical guide rail and travels horizontally by a car transfer device, wherein the car transfer device has a horizontal displacement unit with a vertical guide rail piece that guides the elevator car in the horizontal displacement unit, the horizontal displacement unit being movable into a transit position in which the vertical guide rail piece forms a section of the vertical track together with the stationary vertical guide rail, the elevator system comprising:

• a connecting device that, when the horizontal displacement unit is in the transit position, is operable to vertically connect the vertical guide rail piece to the stationary vertical guide rail when they are vertically aligned in the transit position;
• and
• wherein, when the vertical guide rail piece is connected to the stationary vertical guide rail by the connecting device, the vertical guide rail piece cannot be displaced in a horizontal direction relative to the stationary vertical guide rail.