| 摘要 |
FIELD: construction.SUBSTANCE: screen device comprising a screen, which provides for free compression and stretching and is mounted between a pair of sliding mounting frames of the screen, arranged at the left and right sides, to be located oppositely to each other, guide frames arranged accordingly near upper and lower terminal parts of the screen, at the same time guide frames have flexibility, have free ends at their every side and may be placed inside and be withdrawn from the mounting frames of the screen, at the same time guide frames preserve straightness of their withdrawn parts when withdrawn from mounting frames of the screen in process of sliding motion of mounting frames of the screen, differing by the fact that there is the first section of the body and the second section of the body, which are made as capable of keeping separately two guide frames, are separated from each other and arranged accordingly in the inner part of each mounting frame of the screen, at the same time the first section of the body and the second section of the body are placed in different positions in direction of width in the inner part of the mounting frame of the screen and stretch in direction of height of mounting frames of the screen, and two guide frames are connected to each other by appropriate free ends, which are in the same frames of the screen, with the help of stretched elements, every of which forms a loop, which does not have a crossing point.EFFECT: lower limitation of usage of size of a structure part, where a screen device is mounted, such as an opening in a building.4 cl, 5 dwg |
