HEXAGONAL HELICOIDAL STAIRCASE STAIRCASE MODULE, TOGETHER WITH AT LEAST ONE SUCH MODULE AND STAIRCASE COMPRISING AT LEAST ONE SUCH ASSEMBLY

摘要

The module (1) for a hexagonal helical modular staircase, with six vertical corner uprights around a vertical central upright, comprises a vertical central pole (2) and two triangular horizontal steps (3, 4), one of which is low and one high, secured to the central post (2), a stringer (7) and two corner posts (10, 11) parallel to the central post (2), and one of which said front corner post (10) ) is integral with the stringer (7) and the low step (3), and the other said rear corner post (11) is integral with the stringer (7) and the top step (4), the three poles (2, 10, 11) of the module each having a female end and a male end adapted to receive a male end and to be received in a female end of the identical module posts (1) to contribute with the latter to the constitution of the amount central and corner uprights of the stairs.