Door having a flexible curtain

A door with flexible curtain comprising a structure including uprights and a transverse element allowing to guide a flexible curtain provided with a ballasting and sealing element at its free end and at least one reinforcing element parallel to the ballasting and sealing element, the door also comprising a driving unit supported by the structure allowing to maneuver the curtain between an opening position and a closing position, and a detection unit configured to detect encounter with an obstacle likely to cause, when activated, the stopping and/or reverse displacement of the curtain, carried at least partly by a supporting element and integrated within the lower part of the curtain, the detection unit being situated upstream of the ballasting and sealing element on the closing trajectory of the curtain between the reinforcing element and the ballasting and sealing element, wherein the door comprises at least one emitter, each emitter cooperating with the detection unit in order to emit a radio signal following the triggering of the detection unit, the radio signals emitted by each emitter being received by at least one receiver cooperating with the driving unit configured to drive the curtain consecutively to the triggering of the detection unit, and in that the curtain comprises at least one support member arranged in proximity to one of the uprights in order to support each emitter in a lateral area of the curtain.