Stair systems and wall assemblies comprising same

Abstract

A stair system according to one illustrative embodiment comprises: a support body mountable in a wall and comprising a connecting region; a stair body; and a mounting apparatus. The mounting apparatus comprises: a connector connectable to the connecting region of the support body in any one of a plurality of different positions in the connecting region of the support body; and a holder configured to hold the stair body such that when the connector is connected to the connecting region of the support body, the stair body is spaced apart from the support body to permit a wall panel between the stair body and the support body. Wall assemblies comprising such stair systems are also disclosed.

What is claimed is: 
     
         1 . A stair system comprising:
 a support body mountable in a wall and comprising a connecting region;   
       a stair body; and
 a mounting apparatus comprising:
 a connector connectable to the connecting region of the support body in any one of a plurality of different positions in the connecting region of the support body; and 
 a holding projection, wherein the stair body is configured to receive at least a portion of the holding projection so that the mounting apparatus holds the stair body when the stair body receives the at least a portion of the holding projection. 
 
 
     
     
         2 . The stair system of  claim 1  wherein the mounting apparatus is connectable to the support body at any one of a plurality of spaced apart connection locations on the connecting region of the support body. 
     
     
         3 . The stair system of  claim 2  wherein the connecting region of the support body defines a respective at least one through-opening at each one of the plurality of connection locations, and wherein the mounting apparatus comprises at least one through-opening configured to be positioned adjacent the respective at least one through-opening of any one of the plurality of connection locations, whereby at least one fastener is receivable through the at least one through-opening of the mounting apparatus and through the respective at least one through-opening of a selected one of the plurality of connection locations to connect the mounting apparatus to the connecting region of the support body at the selected one of the plurality of connection locations. 
     
     
         4 . The stair system of  claim 3  wherein the at least one through-opening of the mounting apparatus is elongate to permit the mounting apparatus to be connected to the connecting region of the support body over a respective range of positions around each one of the plurality of connection locations. 
     
     
         5 . The stair system of  claim 4  wherein the at least one through-opening of the mounting apparatus is at least as long as a spacing distance between adjacent ones of the plurality of connection locations to permit the mounting apparatus to be connected to the connecting region of the support body in any one of a plurality of different positions continuously available along the connecting region. 
     
     
         6 . The stair system of  claim 1  wherein the connecting region extends about half of a height of the support body. 
     
     
         7 . The stair system of  claim 1  wherein when the mounting apparatus is connected to the connecting region of the support body and when the stair body receives the at least a portion of the holding projection, the stair body is positionable relative to the support body to define a gap between the stair body and the support body that permits a generally planar wall panel to be positioned in the gap between the stair body and the support body and perpendicular to the stair body when the mounting apparatus extends through the wall panel. 
     
     
         8 . The stair system of  claim 1  wherein the stair body defines a cavity open at an open end of the stair body, wherein the holding projection sized to be received in the cavity of the stair body. 
     
     
         9 . The stair system of  claim 8  wherein the stair body defines at least one through-opening, and wherein the holding projection of the mounting apparatus defines at least one through-opening positioned to be aligned with the at least one through-opening of the stair body when the holding projection of the mounting apparatus is received in the cavity of the stair body, whereby at least one fastener is receivable in the at least one through-opening of the stair body and in the at least one through-opening of the holding projection of the mounting apparatus to fasten the stair body to the holding projection of the mounting apparatus. 
     
     
         10 . The stair system of  claim 8  wherein the mounting apparatus is configured to be concealed substantially by the wall panel and by the stair body when the mounting apparatus is positioned on an inside of the wall panel and when the holding projection of the mounting apparatus is received in the cavity of the stair body on an outside of the wall panel opposite the inside of the wall panel. 
     
     
         11 . The stair system of  claim 8  wherein the holding projection comprises at least one upper contact surface for contacting an upper surface of the cavity of the stair body when the holding projection of the mounting apparatus is received in the cavity of the stair body, and at least one lower contact surface for contacting a lower surface of the cavity of the stair body when the holding projection of the mounting apparatus is received in the cavity of the stair body. 
     
     
         12 . The stair system of  claim 11  wherein the at least one upper contact surface, the at least one lower contact surface, or both the at least one upper contact surface and the at least one lower contact surface are adjustable to permit adjustment of a distance between a plane including the at least one upper contact surface and a plane including the at least one lower contact surface. 
     
     
         13 . The stair system of  claim 8  wherein the holding projection extends generally perpendicular to connecting flanges of the mounting apparatus, wherein the connecting flanges are connectable to the connecting region of the support body in the any one of the plurality of different positions in the connecting region of the support body. 
     
     
         14 . A wall assembly comprising:
 a wall comprising a plurality of wall studs and a wall panel mounted on front surfaces of the wall studs; and   a stair system according to  claim 1 ;   wherein the support body of the stair system is mounted in the wall;   wherein the mounting apparatus of the stair system is connected to the connecting region of the support body of the stair system in one of the plurality of different positions in the connecting region of the support body of the stair system.   
     
     
         15 . The wall assembly of  claim 14  wherein the support body of the stair system is mounted in the wall independently of the wall studs. 
     
     
         16 . The wall assembly of  claim 14  wherein the stair body of the stair system is supported only by the mounting apparatus of the stair system whereby the stair body of the stair system is single-cantilevered only at one end of the stair body of the stair system. 
     
     
         17 . The wall assembly of  claim 14  wherein the support body of the stair system extends generally vertically in the wall. 
     
     
         18 . A method of supporting a stair body relative to a wall, the method comprising:
 connecting a mounting apparatus to one of a plurality of different positions in a connecting region of a support body mounted in the wall; and   holding the stair body on the mounting apparatus, wherein holding the stair body on the mounting apparatus comprises receiving, in the stair body, at least a portion of a holding projection of the mounting apparatus.   
     
     
         19 . The method of  claim 18  wherein holding the stair body on the mounting apparatus comprises single-cantilevering the stair body only at one end of the stair body. 
     
     
         20 . The method of  claim 18  wherein the support body extends generally vertically in the wall.