A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
STAIRCASE WITH FOLDABLE TREADS
A folding staircase having a pair of stringers and at least one tread spanning between the stringers. Each of the stringers having an upper end and a lower end. Each of the treads having a forward edge and a rearward edge that define the width of each tread. The treads being pivotally moveable between the stringers. A linkage connecting each tread at a pivot point. The treads being movable between a use position and a stowed position.
STAIRCASE WITH FOLDABLE TREADS
A folding staircase having a pair of stringers and at least one tread spanning between the stringers. Each of the stringers having an upper end and a lower end. Each of the treads having a forward edge and a rearward edge that define the width of each tread. The treads being pivotally moveable between the stringers. A linkage connecting each tread at a pivot point. The treads being movable between a use position and a stowed position.
STAIRCASE WITH FOLDABLE TREADS
BYERS JASON ANTHONY (author) / LAMBRIGHT RAYMOND (author)
2020-04-02
Patent
Electronic Resource
English
IPC:
E06C
LADDERS
,
Leitern