Vertical rapid rolling door for use in e.g. superstore, has activating unit for provoking automatic raising of curtain to open position in response to detection of deformation of push zone

摘要

The door (1) has two vertical posts (2) for defining a normal operation plane, and a shaft (3) placed at an upper end of the posts and driven by a motor (5) and a reducer (6). A safety system includes a push zone (13) provided on a face of a flexible curtain (7) opposite to a detection plane for being deformed under effect of push exerted horizontally, so that the push zone crosses the detection plane. An activating unit provokes automatic raising of the curtain to an open position in response to the detection of the deformation of the push zone.