Staircase stringer assembly

Details Staircase stringer assembly Staircase stringer assembly

E - Fixed Constructions

04

F

20/101

E04F 11/00 (2006.01)

Patent

CA 1315068

ABSTRACT OF THE DISCLOSURE The present invention relates to a staircase stringer assembly having only three main structural parts which may all be formed from extruded metal stock. The components of the assembly include a stringer member having an integral outwardly open channel which extends longitudinally the entire length thereof. The assembly according to the present invention also comprises a riser member having flanges for slidable engagement with the channel of the stringer member. A run member completes the assembly. The run member is adapted to cooperatively engage with the riser member and provides a substantially planar and horizontal surface for supporting a single stair tread or step placed thereon. The use of only three main structural parts in the staircase stringer assembly of the present invention results in lower manufacturing costs for a particular installation when compared to known staircase constructions. Furthermore, a staircase installation using the staircase stringer assembly according to the invention may be shipped conveniently and inexpensively to the building site in disassembled form rather than as bulky sub-assemblies, The present invention is also easily adaptable to different staircase designs and configurations.

598611

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