Stair modules which co operate to form a temporary stair case
OwnerJohn Prestoninventor
Life of this patent
Estimating the term…
Abstract
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.
Claims21
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.
A stair module for use in the construction of a stair assembly formed from at least two said stair modules, each module comprising first and second side abutments and spanning therebetween a stair tread;
- the stair tread terminating in first and second ends;
- the side abutments each comprising an end wall and side walls defining a cubic formation forming an internal space which receives and retains one of the ends of the stair tread;
- wherein, the side abutments of each module are comprised of adjacent L-shaped sections;
- and
- wherein each L-shaped section is, when connected to form the side abutments, disposed normally to one of the adjacent L-shaped sections.
A method of assembly of a modular stair assembly, comprising a plurality of stair modules;
- the method comprising the steps of:
- a) providing the stair modules, each of the modules comprising first and second side abutments and spanning therebetween a stair tread;
- the stair tread comprising a channel section terminating in first and second ends;
- the side abutments each comprising an outer wall and side walls defining a cubic formation forming an internal space which receives and retains the stair tread;
- b) providing auxiliary modules each having a vertical contacting surface and a horizontal bearing surface;
- and
- c) attaching the contact surfaces of one of the auxiliary modules to the side abutments of a first one of said modules, and attaching the side abutments of a second one of the modules to the bearing surfaces of the one of the auxiliary modules such that the first and second modules are in cascading relationship.
Dependencies are inferred from the claim text.