Patent ID: 7918263

Claim:
A high-speed door intended to close off an opening made in a wall, delimited by a lintel and by two vertical edges, the door comprising: two substantially vertical lateral parts positioned against each of the vertical edges of the opening; a shaft positioned at the lintel of the opening and rotationally driven by electromechanical means; a curtain made of flexible material having a first face and a second face and which is connected to the shaft, rotation of the shaft being able to move the curtain between a closed position in which the curtain closes off the opening, and an open position in which the curtain uncovers the opening, flexible means of protecting the shaft which means extend between the two lateral parts and are capable of bearing against the lintel, the flexible protection means also possessing first transverse sealing means capable of bearing transversely against the first face of the curtain when this curtain is in the closed position; and at least two transverse support bars which generally extend between the two lateral parts; wherein the flexible means extend over the transverse support bars.