Stair cage

1. A stair cage for use on a stairway, comprising:

two elongated track members;

wherein said two elongated track members are adapted to be securely attached to opposing walls of a stair case in proximity to a position that hand rails are adapted to be positioned;

two elongated cross-bars, each elongated cross-bar of said two elongated cross-bars comprising

opposing ends,

a track engaging member on each opposing end of said opposing ends forming track engaging members,

wherein each said track engaging member is adapted to selectively slide or grab a respective elongated track member of said two elongated track members, such that said each elongated cross-bar is adapted to be connectable and slidable between and within said two elongated track members,

a center section,

wherein said center section is pivotable at a proximal end thereof and releasably connected at a distal end thereof to respective end sections of said opposing ends of said each elongated cross-bar,

a brake assembly comprising

at least one brake handle member located in said center section, and

a brake line mechanically connected to and controlled by said at least one brake handle member and mechanically connected to each said track engaging member,

wherein when said at least one brake handle member is engaged,

 said track engaging members and thereby said two elongated cross-bars are stopped within said two elongated track members, and

wherein when said at least one brake handle member is disengaged,

 said track engaging members and thereby said two elongated cross-bars are slidable within said two elongated track members; and

at least two connector bars,

wherein said at least two connector bars are respectively connected between said two elongated track members within said respective end sections thereof, to thereby form a cage adapted to allow a person to stand therein when using said stair cage to move up and down a stairway.

2. The stair cage of claim 1 , further comprising a guard member connected to said center section of one of said two elongated cross-bars, such that when a person is using said stair cage, said person is configured to lean against said guard member and be held more stably therein.

3. The stair cage of claim 2 , wherein said guard member is formed as a padded rigid panel.

4. The stair cage of claim 2 , wherein said guard member is formed as a foldable panel member.

5. The stair cage of claim 1 , wherein said track engaging members are formed as wheel members comprising brake members attached thereto and adapted to selectively resist rotary movement thereof respectively via each said brake assembly.

6. The stair cage of claim 5 , wherein each said brake assembly and the at least one brake handle member thereof include spring members.

7. The stair cage of claim 1 , wherein said two elongated track members are formed from steel.

8. The stair cage of claim 1 , wherein said two elongated cross-bars are covered with a padding material.

9. The stair cage of claim 8 , wherein said padding material is formed from a protective foam.

10. The stair cage of claim 1 , wherein each said center section includes a releasable locking member on said distal end thereof to releasably connect with said respective end sections of said each elongated cross-bar respectively.

11. The stair cage of claim 1 , wherein said two elongated cross-bars are formed having a length of at least 8 feet.

12. The stair cage of claim 1 , wherein said two elongated cross-bars and said at least two connector bars are formed from a material chosen from a group of materials consisting of metal and rigid plastic.