Interfloor vertical transport and horizontal closure system

摘要

A horizontal door system is used in conjunction with an interfloor vertical transport system that penetrates an opening in a floor. The vertical transport system has vertical elements that define a fixed horizontal cross-section within the opening, and the door system includes a leading edge profile having a configuration matching the fixed horizontal cross-section of the vertical transport system. The door system is particularly suitable as a fire door system to seal upper and lower fire zones.