FIELD: space engineering. SUBSTANCE: device for extending the working modules of space vehicles has lattice girder mounted on bearing platform which has polygonal cross-section and its lateral faces are made in form of X-shaped members; besides that, it has equal-arm levers connected by means of hinges; ends of these equal-arm levers belonging to adjacent members are hinged together. Device is provided with additional load- bearing members mounted in planes parallel to polygonal cross-section of girder and rigidly connected with axles of equal-arm lever hinges. End members of lateral faces are articulated to bearing platform of space vehicle by means of levers whose length is at least half length of equal-arm levers. EFFECT: enhanced mass characteristics through ensuring preset stability in transverse plane in working position. 2 cl, 2 dwg
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