Car structure

A self-supporting elevator car structure for a cantilever-type elevator system in which a car is movable along two vertical guide rails which are placed in a hoistway to one side of the car and the car is eccentrically suspended by hoisting ropes which are attached to a rope support fixture protruding from the one side of the car, the car structure comprising:

• two closed rectangular frame stiffeners arranged in two planes which lie parallel to the guide rails and orthogonally to a plane between the rails so as to form a front frame and a back frame of the car, the closed rectangular frame stiffeners each having a lower horizontal frame profile;
• a supporting structure arranged as a junction between the lower horizontal frame profiles of the two closed rectangular frame stiffeners, the rope support fixture being arranged on the supporting structure so as to laterally protrude therefrom;
• floor elements, a ceiling element and side-wall elements mounted to the rectangular frame stiffeners so as to form an enclosure;
• and
• lower and upper guide shoe supports joined to the closed rectangular frame stiffeners and equipped with guide shoes for guiding the car on the guide rails, the closed rectangular frame stiffeners being rated so as to provide the car with stability so as to withstand a cantilever effect and thereby avoid a need for additional reinforcement means.