Stair track device
AssigneeThe Moving Company
InventorsFrederick R. Yde, Martin R. Albar
Life of this patent
Estimating the term…
Abstract
A stair track device adjustable to correspond with a variety of physically different stairways is shown. The stair track device includes right side rails which slidably engage one another in telescopic fashion to form a rail assembly. Locking pins fix the telescopic position of the rails with respect to one another. A corresponding mirror image left rail assembly is secured in position with respect to the right rail assembly by way of rods removably attached to each rail assembly. Lower and upper support members provide anti-skid support as well as establishing a proper angular relationship between the rail assemblies and the stairway. The rails can be detached from one another collapsed and compactly stored for easy transport to any location.
Claims20
A stair track device for use with a stairway and comprising:
- a first rail having an L-shaped cross-section, said first rail including a channel on one surface of said first rail and a tongue means on a second surface of said first rail for slidably engaging a corresponding mating channel of another rail;
- a second rail having an L-shaped cross-section, said second rail including a channel on one surface of said first rail and a tongue means on a second surface of said first rail wherein said second rail slidably engages said channel of said first rail to provide a first longitudinally adjustable rail assembly;
- a third rail having an L-shaped cross-section, said third rail including a channel on one surface of said first rail and a tongue means on a second surface of said first rail for slidably engaging a corresponding mating channel of another rail;
- a fourth rail having an L-shaped cross-section, said fourth rail including a channel on one surface of said first rail and a tongue means on a second surface of said first rail wherein said fourth rail slidably engages said channel of said third rail to provide a second longitudinally adjustable rail assembly;
- a first triangular support member removably attached to said first rail, said first support member situated near the top of the stairway;
- a second triangular support member removably attached to said third rail, said second support member situated near the top of the stairway;
- and
- a first transverse stabilizer rod removably attached to said first and second triangular support members, said rod situated in close proximity to the surface of the stairway.
A stair track device for use with a stairway and comprising:
- a first rail having a channel on one surface of said first rail and a tongue means on a second surface of said first rail for slidably engaging a corresponding mating channel of another rail;
- a second rail having a channel on one surface of said first rail and a tongue means on a second surface of said first rail wherein said second rail slidably engages said channel of said first rail to provide a first longitudinally adjustable rail assembly;
- a third rail having a channel on one surface of said first rail and a tongue means on a second surface of said first rail for slidably engaging a corresponding mating channel of another rail;
- a fourth rail having a channel on one surface of said first rail and a tongue means on a second surface of said first rail wherein said fourth rail slidably engages said channel of said third rail to provide a second longitudinally adjustable rail assembly;
- a first support member removably attached to said first rail, said first support member situated near the top of the stairway;
- a second support member removably attached to said third rail, said second support member situated near the top of the stairway;
- and
- a first transverse stabilizer rod removably attached to said first and second support members, said rod situated in close proximity to the surface of the stairway.
Dependencies are inferred from the claim text.