FIELD: construction.
SUBSTANCE: overhead door contains door leaf with upward growing width with narrower part above and wider part at the bottom. It is also flexible in rolling direction, grooves serving as guide path, two modules for rolling and uprolling of door leaf so that door leaf layers are not in contact with each other. Door has one rolling arbor with stated modules. Modules have one central axle and gradually widen in radial direction, so that while door opening narrower and wider leaf parts interrelate relatively with smaller and bigger module parts.
EFFECT: invention allows decreasing noise level and provides higher opening and closing speed of overhead door.
36 cl
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