In terms of elevator design, what is the purpose of an entrance frame?

The purpose of an entrance frame in elevator design is fundamentally tied to the structural integrity and functionality of the door system. Serving as a robust support mechanism, the entrance frame ensures that various components of the door hardware, such as hinges, tracks, and locking mechanisms, are securely mounted and can operate correctly. This structural support is crucial because it maintains the alignment and operation of the doors, which must open and close smoothly and reliably for safe passenger transit.

When the entrance frame is well-designed and installed, it contributes to the overall stability of the door assembly. This stability is vital not only for the efficient operation of the elevator but also for safety, as any misalignment or inadequacy in support could potentially lead to malfunction or hazardous situations during use. Thus, the entrance frame is integral to the function of door hardware, ensuring that passengers can access the elevator safely.