Connecting device of the treads to the uprights of a staircase, in particular of a gateway to pedestrians and a staircase, or a gateway to pedestrians thus teams

摘要

The connection arrangement includes side uprights (5), each constituted by a metallic profile with at least two spaced T-shape longitudinal grooves (9). Complementary rigid slides (11) are inserted in the grooves with a close fit. The slides are pre-drilled and the threaded holes (13) that correspond to the mounting positions of the steps, receive fixing screws (15). The screws fix U-shaped reinforcements (17) that are attached to each end of the steps, to the side uprights, via the slides. An Independent claim is included for stairs or a footbridge including pre-drilled slides for mounting the steps to the side uprights.