US 11,732,481 B2 · Cantilever stair assembly

Abstract

A cantilever stair assembly for installation in segments or sections includes a stair tread module including a stair tread plate having a tread hole. An embedded stair tread is inserted into and fixed within the tread hole. The stair tread module may include a first inner wall stair tread support and a second inner wall stair tread support for mounting to opposite sides of a vertical support member. Each of the first and second inner wall stair tread supports has a first plate with a plurality of support-member-engagement holes therethrough and a second plate perpendicular to the first plate and having a plurality of stair-tread-plate-engagement holes therethrough. The stair tread plate is secured to at least one of the plurality of stair-tread-plate-engagement holes of each of the first and second inner wall stair tread supports.

Claims17

Dependent claims

A cantilever stair assembly comprising:

a stud forming a portion of a wall of a building, the wall having an outer wall surface, and the stud being a vertical support member of a frame of the building;
a stair tread module including a stair tread extending outwardly from the outer wall surface, a stair tread plate for supporting the stair tread, and a support portion for engaging the stud and supporting the stair tread plate on the stud,
wherein the stair tread has a first end, and second end, and a cross-sectional shape, the cross-sectional shape being uniform from the first end to the second end thereof, and
wherein the stair tread plate has a tread hole, the tread hole and first end of the stair being complementarily shaped, the first end of the stair tread being positioned within the tread hole and welded directly to the stair tread plate and is thereby fixed in position in the tread hole.

1 more element

A cantilever stair assembly comprising:

a stair tread module including a stair tread plate having a tread hole, first and second mounting holes, and an embedded stair tread inserted into and fixed within the tread hole,
wherein the stair tread module further includes a first inner wall stair tread support and a second inner wall stair tread support for mounting to opposite sides of a vertical support member, each of the first and second inner wall stair tread supports has a first plate with a support-member-engagement hole therethrough, and each of the first and second inner wall stair tread supports has a second plate perpendicular to the first plate thereof, and each second plate is oriented vertically and perpendicular to the stair tread and has a stair-tread-plate-engagement hole therethrough, wherein the first and second mounting holes of the stair tread plate are respectively aligned with and secured to the stair-tread-plate-engagement hole of each of the first and second inner wall stair tread supports.

Dependencies are inferred from the claim text.

Cantilever stair assembly

Life of this patent

Cantilever stair assembly

Life of this patent

Abstract

Claims17