Stairs

• US 20080295422A1
• Filed: 09/29/2005
• Published: 12/04/2008
• Est. Priority Date: 10/06/2004
• Status: Abandoned Application

• Current Assignee: Franz Neuhofer Jr
• Original Assignee: Franz Neuhofer Jr
• Inventors: Neuhofer, Franz JR.
• Application Number:
  US11/664,864
• Publication Number:
  US 20080295422A1
• Time in Patent Office: Days
• US Class Current: 52/179
• CPC Class Codes: E04F 11/166 with means for fixing a separate edging strip
• CPC Class Codes: E04F 11/17 Surfaces guard covers of stairs E04G21/30
• CPC Class Codes: E04F 19/063 for simultaneously securing panels having different thicknesses

Abstract

Stairs are described, comprising a lining made of tread plates (3) fastened in the tread area (2) of the steps (1) and riser plates (5) arranged in the riser area (4) which are held with a lower boundary section between the riser area (4) of the steps (1) and the respectively adjacent bottom tread plate (3) and are overlapped in the upper boundary region (14) by a downwardly projecting boundary nose (16) of the respective upper tread plate (3). In order to provide advantageous fastening conditions it is proposed that the riser plates (5) engage with their bottom boundary section into an upwardly open holder profile (6) which is U-shaped in its cross section and is fastened with the leg (8) on the step side in the riser area (4) of the steps (1) and overlaps the adjacent bottom tread plate (3) with a bent covering flange (10) of the other leg (9).

Claims

1. Stairs with a lining made of tread plates fastened in the tread area of the steps and riser plates arranged in the riser area which are held with a lower boundary section between the riser area of the steps and the respectively adjacent bottom tread plate and are overlapped in the upper boundary region by a downwardly projecting boundary nose of the respective upper tread plate, wherein the riser plates (5) engage with their bottom boundary section into an upwardly open holder profile (6) which is U-shaped in its cross section and is fastened with the leg (8) on the step side in the riser area (4) of the steps (1) overlaps the adjacent bottom tread plate (3) with a bent covering flange (10) of the other leg (9).

2. Stairs according to claim 1, wherein the bent covering flange (10) of the holder profile (6) can project downwardly against the overlapped tread plate.

3. Stairs according to claim 2, wherein the bent covering flange (10) of the holder profile (6) has a cross-sectional shape adjusted to a quarter circle.

4. Stairs according to claim 1, wherein the covering flange (10) is joined with the adjacent leg (9) of the holder profile (6) by means of a bending area (12).

5. Stairs according to claim 1, wherein the transitional areas between the legs (8, 9) and the web (7) connecting the legs (8, 9) of the holder profile (6) which is U-shaped in its cross section from bending points.

6. Stairs according to claim 1, wherein a downwardly open receiving profile (15) for the upper boundary region (14) of the riser plates (5) is provided on the inside of the downwardly projecting boundary nose (16) of the tread plates (3).

7. Stairs according to claim 6, wherein the receiving profile (15) forms a fastening web (17) engaging in a groove of the boundary nose (16) of the tread plates.