System for building formwork for concrete stairs and related methods

摘要

The present invention provides a system to build formworks for building concrete stairs which is durable and reusable, which can be rapidly mounted and dismantled on site and which is adjustable to a variety of flight of stairs having different widths, rises and pitches. The system comprises (a) at least one side plate which can be releasably secured to a supporting structure on a footing; the side plate defining a side of at least one stair and defining the depth of a tread of said stair; (b) at least one riser member for defining the rise of the at least one stair; the riser member being complementary to the side plate; and (c) means for fastening the riser member to the side plate; wherein the side plate and riser member are reusable.

主权项

1. A casing system for building a formwork for building concrete stairs comprising:
a) at least one side plate which can be releasably secured to a supporting structure on a footing; said side plate defining a side of at least one stair and defining the depth of a tread of said stair; b) at least one riser member for defining the rise of said at least one stair; said riser member being complementary to said side plate; and c) a clamp for fastening the riser member to the side plate; wherein said side plate and riser member are reusable.