Retractable balcony glass structure

An extensible/retractable panel assembly having a retracted end, a retracted condition and comprising:

• an upper guide,
• a lower guide and
• a plurality of panel subassemblies, each of said subassemblies having a vertical edge and an outer surface and an inner surface, one of said subassemblies being pivotally attached to said upper and lower guides at said retracted end about an axis near to and parallel to said vertical edge, the remainder of said subassemblies further comprising:
• an upper fitting,
• a lower fitting,
• a pivoted guide fitting assembly and a guide fitting attached to said upper fitting and
• a pivoted guide fitting assembly and a guide fitting assembly attached to said lower fitting,
• said guide fitting assemblies and said guide fitting engaging said guides such that said subassemblies are slidable sequentially to said retracted end and pivotable on said pivoted guide fitting assemblies such that in said retracted condition said inner surfaces and said outer surfaces interface with each other,
• said upper guide comprising a channel having an outer flange and an inner flange, said outer flange having an inner surface, said assembly further comprising a plurality of leaf springs, one for each of said remainder of subassemblies, each of said plurality of leaf springs engaging said pivoted guide fitting assembly attached to said upper fitting when said subassemblies are in said retracted condition,
• said pivoted guide fitting assemblies attached to said upper fittings further comprising cam means for disengaging said leaf springs from said pivoted guide fitting assemblies when said subassemblies are positioned to slide in said guides,
• said guide fittings and said guide fitting assemblies attached to said lower fittings further comprising rollers which engage said lower guide to support said subassemblies.