Self-supporting elevator car

Abstract

The invention relates to an elevator comprising an elevator car 1, which is preferably suspended at the top thereof on a carrying means and guided on tracks, a driving disk mechanism, and a counterweight, wherein the carrying structure is made two frames 2a, 2b surrounding the elevator car in the manner of a closed ring for the purpose of transferring the forces caused by the mass of the elevator car, including the payload thereof, onto the carrying means and vice versa, each ring being substantially formed by closed hollow profiles, the two frames being rigidly connected to one another by bridges 4, 16, resulting in a unified, fixed carrying structure in the shape of a twin frame, each of the two frames being located symmetrically to the side of the guide rails and not flush with the guide rails and using the installation space already available to the side of the guide rails. The frames 2a, 2b are arranged at such a distance from one another that space remains between them for accommodating at least one essential elevator element and each of the frames is either an integral component of two side walls and the ceiling of the elevator car, or at least resting with substantially the entire surfaces thereof from the outside against the side walls and ceiling of the elevator car.

Description

technical field [0001] The invention relates to an elevator with a self-supporting car according to the preamble of claim 1 . Background technique [0002] Up to now, elevator cars have been constructed in such a way that a solid car frame is provided in which a platform or a closed elevator car is inserted. The platform or elevator cabin receives the payload to be conveyed and / or the persons to be conveyed. When an elevator is centrally hung, the platform or cab is suspended in the broadest sense in a "ring" that guides all traffic from and to the suspension mechanism in such a way that it surrounds the platform or cab on the outside. In this way, several structural spaces are subjected to force. [0003] However, self-supporting cars have also gradually appeared in the prior art, which is different from the principle proposed before. [0004] For example, German Patent Application Publication No. DE 30 32 240 proposes a self-supporting car made in the form of an inheren...

AI Technical Summary

Problems solved by technology

[0009] This structure does significantly reduce the fixing costs necessary to attach the metal panels to the self-supporting car floor and car roof structure, but does not solve the remaining problems that arise in such structures

In particular, even in this configuration it is very difficult to control the twisting problem that occurs when the car load is significantly off-centre

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