FIELD: construction engineering; balcony glazing. SUBSTANCE: system has movable member with first and second sides; assemblies of guiding rollers fastened on first and second sides. Assemblies of guiding rollers include two guiding units installed at least on one side at certain distance from each other and fixed box-type guide for directing and holding assemblies of guiding rollers. Guide wall has hole whose size is chosen to ensure extraction of first and second assemblies of guiding rollers from this hole so as to avoid their interaction with guide. First assembly of guiding rollers is smaller than second one. System is provided with lid made for its removable installation above hole for its partial closing to block passage of second assembly of guiding rollers through this hole while ensuring passage of first assembly of guiding rollers. EFFECT: improved convenience and safety of system. 6 cl, 17 dwg
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Authors
Dates
2001-06-20—Published
1992-03-26—Filed