Car arrangement and method for mounting a spindle drive in a car arrangement for a double-decker elevator

A car arrangement for a double-decker elevator, the car arrangement comprising:

• a first car;
• a second car;
• a car frame adapted to be arranged in an elevator shaft of the double-decker elevator and displaceable in a longitudinal direction of the elevator shaft;
• wherein the first car and the second car are arranged one above the other in the car frame in an operational state of the double-decker elevator;
• wherein the first car is displaceable along the car frame in a direction of a vertical axis by a spindle drive;
• wherein the spindle drive includes a spindle mechanically coupled to the first car and a drive unit driving the spindle;
• wherein the drive unit has a housing with a fastening flange adapted to fasten the housing to the support structure;
• wherein a cutout is provided in the support structure in form of a continuous opening in the support structure that connects an upper side to a lower side of the support structure, therefore allowing the fastening flange to be guided through the cutout unhindered;
• wherein the housing is rotatable together with the fastening flange about its longitudinal axis between a first angular position in relation to the cutout and a second angular position in relation to the cutout;
• and
• when the housing is in the first angular position the fastening flange exposes the cutout so that the spindle drive can be guided through the cutout in the direction of the vertical axis, and when the housing is in the second angular position the fastening flange projects beyond an outer edge of the cutout and is configured to be fastened in that second angular position to the support structure of the car frame.