Object and a simplification of the manufacture and assembly of a staircase, so as to scale for the physical activity and exercise

摘要

The wall bars, comprising a series of a series of uprights (2) which are fastened to a wall and round or oval-section horizontal rungs or bars (4), has all the uprights made identical and symmetrical, with notches to receive the bars. The bars are also all identical and symmetrical and are fitted to the uprights by means of wedges (7), load-distributing locking members (6) and fastening screws (5). The wedges and bars are shaped to form rebated joints, and the locking members are shaped to fill any gaps between the notches and bars.