SEALED DOOR Russian patent published in 1994 - IPC

FIELD: civil engineering. SUBSTANCE: to provide sealing locking bar 4 is secured on door body 3 with ends of bar 4 being fixed by hinged locks 5 arranged on frame 1. Leaf 2 is pressed to frame 1. With screw mechanism 10 being tightened, pressure is transmitted in turn through rocker 9 to rockers 8 and 7 and rockers 6 secured over perimeter of door flexible leaf 2. Owing to possibility of translational movement of each rocker in direction to door frame 1 and turning of each rocker relative to point of application of efforts in its middle part, and also owing to flexibility of door leaf 2, sealing strip of door leaf is pressed to door frame 1 by efforts from ends of rockers 6 uniformly distributed over length of perimeter, simultaneously compensating for clearances caused both by inaccuracy of manufacture of frame and door and possible structural deformations. EFFECT: enhanced quality of sealing. 3 dwg