Stair modules which co operate to form a temporary stair case

摘要

A stair assembly comprising at least two stair modules with each connected to an adjacent module; the stair assembly comprising a first module having first and second side abutments and spanning therebetween a stair tread. There is at least one other abutment surface associated with said first and second side abutments and which provides a bearing surface to receive and retain an adjacent stair module. The second module includes a stair tread which when disposed adjacent the first module is disposed in an us elevated position relative to the stair tread of the first module, wherein the first and second stair module are interconnected via an auxiliary module.

主权项

1. A stair assembly comprising a plurality of adjacent stair modules; each of the stair modules comprising first and second side abutments and spanning therebetween a stair tread having first and second ends respectively connected to said first and second side abutments; each of said side abutments including at least one abutment surface, the stair modules comprising at least first and second stair modules, the stair tread of the second stair module when disposed adjacent the first stair module is disposed in an elevated position relative to the stair tread of the first stair module, wherein the first and second stair modules are interconnected via auxiliary modules with each auxiliary module comprising a bearing surface for the second stair module and a contact surface for one of the stair modules, the side abutments of the second stair module supported on the bearing surfaces of the auxiliary modules, the contact surfaces of the auxiliary modules connected to the side abutments of the first stair module.