FAST ROLL-UP DOOR COMPRISING CURTAIN HAVING RESILIENT EDGES Russian patent published in 2019 - IPC E06B9/13 E06B9/58 

FIELD: construction.

SUBSTANCE: present invention discloses a fast roll-up door for closing aperture (20); wherein the specified fast roll-up door contains the following elements: (a) curtain (1), comprising two opposing parallel lateral edges extending in the longitudinal direction, and two opposite end edges joining the lateral edges; while each of the two lateral edges is held inside the guiding rails; and (b) pair of elongated guiding rails (4), suitable for holding the lateral edges of the curtain and directing their movement as the curtain is being wound or unwound about rotating axle XI; and characterized in that the curtain contains at least one resilient portion (3a) extending parallel to said lateral edges; however, said resilient portion is suitable for reversibly stretching along a transverse direction, normal to the longitudinal direction, from rest configuration, L0, to stretched configuration, L1=L0+ΔL, upon application of pressure, P, applied substantially normal onto the surface of the curtain, and for returning substantially to its rest configuration, L0, upon release of said pressure.

EFFECT: fast roll-up door containing a curtain with resilient edges is proposed.

13 cl, 6 dwg