As early as in the 19th century drum elevators were used to improve the accessibility of high buildings. The rise in transport heights and the introduction of the traction sheave drive units made possible by the use of technical safety devices such as safety gears, the use of drum elevators declined without ever losing their significance. In the current urban situation with a stock of buildings with structural passenger elevator restrictions, the desire to use light-weight structures and save resources as well as for architectural reasons, increasing numbers of drum elevators with steel and synthetic drums are being used (Fig. 1) aiming at equipping lift shafts with drum elevators offering a high shaft utilization rate. Up to now, the normative limits of a drum-to-rope diameter ratio of D/d ≥ 40 have been met. Structural restrictions demand smaller D/d diameter ratios without neglecting normative aspects and safety-relevant details.
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